Article(id=1242150811514515982, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1242150809505444351, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2024.05.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1699891200000, receivedDateStr=2023-11-14, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774081431511, onlineDateStr=2026-03-21, pubDate=1716134400000, pubDateStr=2024-05-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774081431511, onlineIssueDateStr=2026-03-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774081431511, creator=13701087609, updateTime=1774081431511, updator=13701087609, issue=Issue{id=1242150809505444351, tenantId=1146029695717560320, journalId=1240685776644648972, year='2024', volume='28', issue='5', pageStart='637', pageEnd='802', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1774081431031, creator=13701087609, updateTime=1774081700138, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1242151938268143729, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1242150809505444351, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1242151938272338034, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1242150809505444351, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=771, endPage=786, ext={EN=ArticleExt(id=1242150811753591316, articleId=1242150811514515982, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Generation property of hydrodynamic noise from the typical protrusion and noise control technique, columnId=1241023038381158513, journalTitle=Journal of Ship Mechanics, columnName=Hydro/Structural Acoustics, runingTitle=null, highlight=null, articleAbstract=
The cooling system can be carried out by the flow pressure difference through the outside protrusion of an underwater vehicle. This system can prevent the low line frequency pipe noise from the pump’s excitation. However, the protrusion is external, generating the hydrodynamic noise and destroying the acoustic stealth of underwater vehicles. Two protrusion models with a rectangular inlet and a circular inlet were created. The flow field and sound field were numerically calculated. The generation property of the hydrodynamic noise from the two protrusions on the condition of different flow velocities was analyzed. It is indicated that the total radiated sound power of the protrusion with the rectangular inlet is slightly lower than that with the circular inlet. To further reduce the hydrodynamic noise, the protrusion with the rectangular inlet was carried out by the flow control through the serrations. The noise reduction effect of the protrusion with the rectangular inlet by the leading-edge serrations is better than that by the tail-edge serrations. The optimized parameters of the serrations were summarized. To validate the numerical calculation results, four protrusion models were designed and fabricated, and the experimental tests were done in the gravity low-noise water tunnel. The results show that the protrusion with the rectangular inlet by the serrations optimization has a better noise reduction effect in the frequency range from 10 Hz to 2000 Hz. The results in this paper can provide some references for the low-noise design of protrusions of underwater vehicles.
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水下航行器利用外部突出体通过流动压力差进行自流冷却,可很好地避免水泵激励排水管路产生的低频线谱噪声,但突出体作为外部凸体产生的噪声会影响水下航行器的声隐身性能。针对矩形入口和圆形入口两种突出体模型,开展流场与声场的数值计算,分析不同流速条件下两种突出体水动力噪声的产生特性,发现矩形入口突出体比圆形入口突出体的辐射噪声小。为进一步降低噪声,采用锯齿结构对矩形入口突出体进行流动控制,发现在矩形入口前缘添加锯齿的降噪效果优于在尾缘添加锯齿,并归纳了具有最佳降噪效果的锯齿参数。为验证数值计算结果,分别加工了四种突出体模型,并在重力式低噪声水洞中开展试验测试。结果表明,采用锯齿优化的矩形入口突出体,在10~2000 Hz范围内有较好的降噪效果。上述研究成果可为水下航行器突出体的低噪声设计提供参考。
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, authorsList=刘永伟, 郑朋辉, 周文林, 商德江)}, authors=[Author(id=1242150823229207471, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1242150823317287864, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150823229207471, language=EN, stringName=Yong-wei LIU, firstName=Yong-wei, middleName=null, lastName=LIU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 1b, 2, address=
1a.Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China
1b.College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
2.Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1242150823384396733, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150823229207471, language=CN, stringName=刘永伟, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 1b, 2, address=
1a.哈尔滨工程大学 水声技术重点实验室,哈尔滨 150001
1b.哈尔滨工程大学 水声工程学院,哈尔滨 150001
2.工业和信息化部海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),哈尔滨 150001, bio={"content":"
刘永伟(1981-),男,博士,副教授
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刘永伟(1981-),男,博士,副教授
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1a.Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China), AuthorCompanyExt(id=1242150821455016848, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150821434045326, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1a.哈尔滨工程大学 水声技术重点实验室,哈尔滨 150001)]), AuthorCompany(id=1242150822881080213, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=1b., ext=[AuthorCompanyExt(id=1242150822889468822, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150822881080213, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China), AuthorCompanyExt(id=1242150822897857431, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150822881080213, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.哈尔滨工程大学 水声工程学院,哈尔滨 150001)]), AuthorCompany(id=1242150823032075168, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=2., ext=[AuthorCompanyExt(id=1242150823040463776, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150823032075168, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China), AuthorCompanyExt(id=1242150823044658081, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150823032075168, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.工业和信息化部海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),哈尔滨 150001)])]), Author(id=1242150823636054980, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1242150823774467025, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150823636054980, language=EN, stringName=Peng-hui ZHENG, firstName=Peng-hui, middleName=null, lastName=ZHENG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 1b, 2, address=
1a.Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China
1b.College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
2.Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1242150823896101849, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150823636054980, language=CN, stringName=郑朋辉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 1b, 2, address=
1a.哈尔滨工程大学 水声技术重点实验室,哈尔滨 150001
1b.哈尔滨工程大学 水声工程学院,哈尔滨 150001
2.工业和信息化部海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),哈尔滨 150001, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1242150821434045326, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=1a., ext=[AuthorCompanyExt(id=1242150821442433935, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150821434045326, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1a.Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China), AuthorCompanyExt(id=1242150821455016848, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150821434045326, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1a.哈尔滨工程大学 水声技术重点实验室,哈尔滨 150001)]), AuthorCompany(id=1242150822881080213, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=1b., ext=[AuthorCompanyExt(id=1242150822889468822, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150822881080213, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China), AuthorCompanyExt(id=1242150822897857431, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150822881080213, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1b.哈尔滨工程大学 水声工程学院,哈尔滨 150001)]), AuthorCompany(id=1242150823032075168, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=2., ext=[AuthorCompanyExt(id=1242150823040463776, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150823032075168, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China), AuthorCompanyExt(id=1242150823044658081, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150823032075168, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.工业和信息化部海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),哈尔滨 150001)])]), Author(id=1242150824009348065, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=651003807@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1242150824101622762, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150824009348065, language=EN, stringName=Wen-lin ZHOU, firstName=Wen-lin, middleName=null, lastName=ZHOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.Hangzhou Applied Acoustics Research Institute, Hangzhou 310023, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1242150824227451889, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150824009348065, language=CN, stringName=周文林, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.杭州应用声学研究所,杭州 310023, bio={"content":"
周文林(1996-),男,硕士,通讯作者,E-mail:651003807@qq.com。
"}, bioImg=null, bioContent=
周文林(1996-),男,硕士,通讯作者,E-mail:651003807@qq.com。
, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1242150823132738471, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=3., ext=[AuthorCompanyExt(id=1242150823136932776, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150823132738471, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.Hangzhou Applied Acoustics Research Institute, Hangzhou 310023, China), AuthorCompanyExt(id=1242150823145321385, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150823132738471, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.杭州应用声学研究所,杭州 310023)])]), Author(id=1242150824307143672, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1242150824420388865, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150824307143672, language=EN, stringName=De-jiang SHANG, firstName=De-jiang, middleName=null, lastName=SHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 1b, 2, address=
1a.Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China
1b.College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
2.Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1242150824491692037, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, authorId=1242150824307143672, language=CN, stringName=商德江, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1a, 1b, 2, address=
1a.哈尔滨工程大学 水声技术重点实验室,哈尔滨 150001
1b.哈尔滨工程大学 水声工程学院,哈尔滨 150001
2.工业和信息化部海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),哈尔滨 150001, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1242150821434045326, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=1a., ext=[AuthorCompanyExt(id=1242150821442433935, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150821434045326, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1a.哈尔滨工程大学 水声技术重点实验室,哈尔滨 150001)]), AuthorCompany(id=1242150822881080213, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=1b., ext=[AuthorCompanyExt(id=1242150822889468822, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150822881080213, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1b.哈尔滨工程大学 水声工程学院,哈尔滨 150001)]), AuthorCompany(id=1242150823032075168, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=2., ext=[AuthorCompanyExt(id=1242150823040463776, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150823032075168, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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31(7): 938-944., articleTitle=水下声源辐射声功率测量实验研究, refAbstract=null), Reference(id=1242150837502423318, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, doi=null, pmid=null, pmcid=null, year=2010, volume=31, issue=7, pageStart=938, pageEnd=944, url=null, language=null, rfNumber=[19], rfOrder=31, authorNames=Shang Dajing, Li Qi, Shang Dejiang, journalName=Journal of Harbin Engineering University, refType=null, unstructuredReference=
Shang Dajing,
Li Qi,
Shang Dejiang,
et al. Measurement of the radiated power of sound sources in a reverberation pool[J].
Journal of Harbin Engineering University,
2010,
31(7): 938-944., articleTitle=Measurement of the radiated power of sound sources in a reverberation pool, refAbstract=null)], funds=[Fund(id=1242150833333285085, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, awardId=JJ2019LH1082, language=CN, fundingSource=黑龙江省自然科学基金资助项目(JJ2019LH1082), fundOrder=null, country=null), Fund(id=1242150833412976864, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, awardId=6142108011305, language=CN, fundingSource=水声技术重点实验室基金资助项目(6142108011305), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1242150821434045326, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, xref=1a., ext=[AuthorCompanyExt(id=1242150821442433935, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, companyId=1242150821434045326, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Rectangular inlet protrusion, figureFileSmall=GN7N83Gs+l57Ad+kxvGMfQ==, figureFileBig=KJUsfOCUb1L9glWjgo4K/Q==, tableContent=null), ArticleFig(id=1242150825573822520, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图1, caption=
矩形入口突出体, figureFileSmall=GN7N83Gs+l57Ad+kxvGMfQ==, figureFileBig=KJUsfOCUb1L9glWjgo4K/Q==, tableContent=null), ArticleFig(id=1242150825779343425, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.2, caption=
Circular inlet protrusion, figureFileSmall=bwop0pjyjMsdFTKkoGEHFA==, figureFileBig=o62yAW52meHugoWyfmSwFA==, tableContent=null), ArticleFig(id=1242150827314458694, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图2, caption=
圆形入口突出体, figureFileSmall=bwop0pjyjMsdFTKkoGEHFA==, figureFileBig=o62yAW52meHugoWyfmSwFA==, tableContent=null), ArticleFig(id=1242150827398344778, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.3, caption=
Pipe system, figureFileSmall=uhWKhY4jLmZlpenYgixlQg==, figureFileBig=YKvC7W/mq3hGwZQUYjVzqQ==, tableContent=null), ArticleFig(id=1242150827486425165, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图3, caption=
管路系统, figureFileSmall=uhWKhY4jLmZlpenYgixlQg==, figureFileBig=YKvC7W/mq3hGwZQUYjVzqQ==, tableContent=null), ArticleFig(id=1242150827570311248, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.4, caption=
Flow field calculation domain, figureFileSmall=fEC3J0o3GN/1AicH+K6dig==, figureFileBig=UlqFdY+G7dd+g2OOThvREg==, tableContent=null), ArticleFig(id=1242150827666780241, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图4, caption=
流场计算域, figureFileSmall=fEC3J0o3GN/1AicH+K6dig==, figureFileBig=UlqFdY+G7dd+g2OOThvREg==, tableContent=null), ArticleFig(id=1242150827746472021, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.5, caption=
Sound field calculation domain, figureFileSmall=HebI/BzpLxKhRW+E4qUiUA==, figureFileBig=rvk2VE6FV9QVg6a7ClzFjw==, tableContent=null), ArticleFig(id=1242150827905855577, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图5, caption=
声场计算域, figureFileSmall=HebI/BzpLxKhRW+E4qUiUA==, figureFileBig=rvk2VE6FV9QVg6a7ClzFjw==, tableContent=null), ArticleFig(id=1242150828065239135, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.6, caption=
Flow field distribution of the rectangular inlet protrusion, figureFileSmall=ksAabzxvc+ESY2+zsuu6SQ==, figureFileBig=XPE/Mw6Kb8P+V44NrHEPAg==, tableContent=null), ArticleFig(id=1242150828174291042, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图6, caption=
矩形入口突出体的流场分布, figureFileSmall=ksAabzxvc+ESY2+zsuu6SQ==, figureFileBig=XPE/Mw6Kb8P+V44NrHEPAg==, tableContent=null), ArticleFig(id=1242150828308508774, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.7, caption=
Flow field distribution of the circular inlet protrusion, figureFileSmall=PCIqmUApcW6oGWHixY9Svg==, figureFileBig=Prmv5jCODnMPBlSXdRmwHQ==, tableContent=null), ArticleFig(id=1242150828388200552, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图7, caption=
圆形入口突出体的流场分布, figureFileSmall=PCIqmUApcW6oGWHixY9Svg==, figureFileBig=Prmv5jCODnMPBlSXdRmwHQ==, tableContent=null), ArticleFig(id=1242150828484669546, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.8, caption=
Radiated sound power from the rectangular inlet and the circular inlet protrusions versus the frequency, figureFileSmall=xflvBoe41f1Dg3hghWblew==, figureFileBig=aEElrJbH82AWj0XR6tuZUg==, tableContent=null), ArticleFig(id=1242150828581138541, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图8, caption=
矩形入口突出体与圆形入口突出体的辐射声功率随频率的变化曲线, figureFileSmall=xflvBoe41f1Dg3hghWblew==, figureFileBig=aEElrJbH82AWj0XR6tuZUg==, tableContent=null), ArticleFig(id=1242150828685996146, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.9, caption=
Single serration, figureFileSmall=TodHhooMgYKfkjE0tiiTWw==, figureFileBig=3EEjwpR69m3CBdZ7yWXogg==, tableContent=null), ArticleFig(id=1242150828790853749, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图9, caption=
单个锯齿前缘, figureFileSmall=TodHhooMgYKfkjE0tiiTWw==, figureFileBig=3EEjwpR69m3CBdZ7yWXogg==, tableContent=null), ArticleFig(id=1242150828899905658, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.10, caption=
Rectangular inlet protrusion with four leading-edge serrations, figureFileSmall=fTlVbfABTTf+Hd+z9WSKwQ==, figureFileBig=rsWiot077udmOx3u5brjbA==, tableContent=null), ArticleFig(id=1242150828971208827, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图10, caption=
添加前缘锯齿的突出体, figureFileSmall=fTlVbfABTTf+Hd+z9WSKwQ==, figureFileBig=rsWiot077udmOx3u5brjbA==, tableContent=null), ArticleFig(id=1242150829071872127, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.11, caption=
Flow field distribution of the rectangular inlet protrusion with the leading-edge serrations, figureFileSmall=r4zwF12jJeAY0WAaqmccrA==, figureFileBig=3ejVt6uDaloAt2SQdWUtlw==, tableContent=null), ArticleFig(id=1242150829180924035, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图11, caption=
添加锯齿前缘的矩形入口突出体的表面流场分布, figureFileSmall=r4zwF12jJeAY0WAaqmccrA==, figureFileBig=3ejVt6uDaloAt2SQdWUtlw==, tableContent=null), ArticleFig(id=1242150829294170245, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.12, caption=
Radiated sound power from the rectangular inlet protrusion and the original rectangular inlet protrusion vs. frequency, figureFileSmall=VG4MW8uCT/8kzcOwhGqboQ==, figureFileBig=J+q6VjsTUfVM5r3kDa5uoA==, tableContent=null), ArticleFig(id=1242150829369667720, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图12, caption=
添加锯齿前缘与原始矩形入口突出体的辐射声功率随频率的变化曲线, figureFileSmall=VG4MW8uCT/8kzcOwhGqboQ==, figureFileBig=J+q6VjsTUfVM5r3kDa5uoA==, tableContent=null), ArticleFig(id=1242150829495496847, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.13, caption=
Rectangular inlet protrusion with trailing-edge serrations, figureFileSmall=2QPk2XqcXuLcKzqHRPQy+g==, figureFileBig=5fhnvAox/XsENIOm/hjgjA==, tableContent=null), ArticleFig(id=1242150829617131664, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图13, caption=
添加锯齿尾缘的矩形入口突出体, figureFileSmall=2QPk2XqcXuLcKzqHRPQy+g==, figureFileBig=5fhnvAox/XsENIOm/hjgjA==, tableContent=null), ArticleFig(id=1242150829696823442, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.14, caption=
Flow field distribution of the rectangular inlet protrusion with trailing-edge serrations, figureFileSmall=h/RDHMsZA+qkyO4Mmt04LQ==, figureFileBig=oDZ5DnvJ89vStjL5B05b5A==, tableContent=null), ArticleFig(id=1242150829763932308, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图14, caption=
添加锯齿尾缘的矩形入口突出体的流场分布, figureFileSmall=h/RDHMsZA+qkyO4Mmt04LQ==, figureFileBig=oDZ5DnvJ89vStjL5B05b5A==, tableContent=null), ArticleFig(id=1242150829843624087, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.15, caption=
Radiated sound power from the rectangular inlet protrusion and the original rectangular inlet protrusion vs. frequency, figureFileSmall=sR065PWKUIEuWsWOXz34GA==, figureFileBig=lEoNQtbuBwdwgcvF6LEOQw==, tableContent=null), ArticleFig(id=1242150829914927259, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图15, caption=
添加锯齿尾缘与原始矩形入口突出体的辐射声功率随频率的变化曲线, figureFileSmall=sR065PWKUIEuWsWOXz34GA==, figureFileBig=lEoNQtbuBwdwgcvF6LEOQw==, tableContent=null), ArticleFig(id=1242150830011396254, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.16, caption=
Photo of the protrusions, figureFileSmall=n84pNOLHqVyL/rNAkL46fA==, figureFileBig=zmzcMAofN7TTw3BnjPtjXQ==, tableContent=null), ArticleFig(id=1242150830086893728, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图16, caption=
突出体模型照片, figureFileSmall=n84pNOLHqVyL/rNAkL46fA==, figureFileBig=zmzcMAofN7TTw3BnjPtjXQ==, tableContent=null), ArticleFig(id=1242150830187557030, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.17, caption=
Connecting block diagram of test system, figureFileSmall=gpQ1cjJ4tUB6x5/5MFLEiA==, figureFileBig=IJhppKk/a4t7zJo1MQUz2w==, tableContent=null), ArticleFig(id=1242150831705895078, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图17, caption=
试验系统连接框图, figureFileSmall=gpQ1cjJ4tUB6x5/5MFLEiA==, figureFileBig=IJhppKk/a4t7zJo1MQUz2w==, tableContent=null), ArticleFig(id=1242150831806558378, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.18, caption=
Radiated sound power from the rectangular inlet and the circular inlet protrusions under different flow velocities vs. frequency, figureFileSmall=Z8P8AQQC9Og05S/I9AfnXw==, figureFileBig=ws6cKMSz+Xjw01VrYKRInA==, tableContent=null), ArticleFig(id=1242150831894638765, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图18, caption=
矩形入口突出体和圆形入口突出体在不同速度下的辐射声功率随频率的变化曲线, figureFileSmall=Z8P8AQQC9Og05S/I9AfnXw==, figureFileBig=ws6cKMSz+Xjw01VrYKRInA==, tableContent=null), ArticleFig(id=1242150831970136241, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.19, caption=
Vibration analysis of the two protrusions at the flow velocity of 7.72 m/s, figureFileSmall=eZwd9niP4KbTF2eH6W6zDA==, figureFileBig=duuvga4lPpmGAQ2WA5ydtg==, tableContent=null), ArticleFig(id=1242150832062410933, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图19, caption=
两种突出体在流速7.72 m/s时的振动特性分析, figureFileSmall=eZwd9niP4KbTF2eH6W6zDA==, figureFileBig=duuvga4lPpmGAQ2WA5ydtg==, tableContent=null), ArticleFig(id=1242150832175657143, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Fig.20, caption=
Comparison of the radiated sound power between the rectangular inlet protrusions with the leading-edge serrations and the trailing-edge serrations at different flow velocities, figureFileSmall=Z82aVJS0IVumXuicT+fwQg==, figureFileBig=U7H4XnZxkXD3IbVAjPQFAg==, tableContent=null), ArticleFig(id=1242150832293097658, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=图20, caption=
添加锯齿前缘和锯齿尾缘矩形入口突出体在不同速度下辐射声功率的比较, figureFileSmall=Z82aVJS0IVumXuicT+fwQg==, figureFileBig=U7H4XnZxkXD3IbVAjPQFAg==, tableContent=null), ArticleFig(id=1242150832368595132, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Tab.1, caption=
Radiated sound power from the rectangular inlet protrusion and the protrusion with the leading-edge serrations of different wavelengths and the noise reduction levels (dB)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 0.6 cm锯齿 | 142.8 | 0.3 | 123.5 | 0.6 |
| 0.9 cm锯齿 | 141.7 | 1.4 | 121.5 | 2.6 |
| 1.2 cm锯齿 | 139.5 | 3.6 | 119.9 | 3.2 |
| 1.5 cm锯齿 | 141.5 | 1.6 | 121.8 | 2.3 |
), ArticleFig(id=1242150832435704000, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=表1, caption=
矩形入口突出体与添加不同波长锯齿前缘突出体的辐射声功率及降噪量(dB)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 0.6 cm锯齿 | 142.8 | 0.3 | 123.5 | 0.6 |
| 0.9 cm锯齿 | 141.7 | 1.4 | 121.5 | 2.6 |
| 1.2 cm锯齿 | 139.5 | 3.6 | 119.9 | 3.2 |
| 1.5 cm锯齿 | 141.5 | 1.6 | 121.8 | 2.3 |
), ArticleFig(id=1242150832511201476, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Tab.2, caption=
Radiated sound power from the rectangular inlet protrusion and the protrusion with the leading-edge serrations of different amplitudes and the noise reduction levels (dB)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 0.9 cm锯齿 | 137.9 | 5.2 | 116.4 | 7.7 |
| 1.2 cm锯齿 | 139.5 | 3.6 | 119.9 | 4.2 |
| 1.5 cm锯齿 | 141.4 | 1.7 | 120.6 | 3.5 |
| 1.8 cm锯齿 | 144.0 | -0.9 | 126.0 | -1.9 |
), ArticleFig(id=1242150832590893253, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=表2, caption=
矩形入口突出体与添加不同振幅锯齿前缘突出体的辐射声功率及降噪量(dB)
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| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 0.9 cm锯齿 | 137.9 | 5.2 | 116.4 | 7.7 |
| 1.2 cm锯齿 | 139.5 | 3.6 | 119.9 | 4.2 |
| 1.5 cm锯齿 | 141.4 | 1.7 | 120.6 | 3.5 |
| 1.8 cm锯齿 | 144.0 | -0.9 | 126.0 | -1.9 |
), ArticleFig(id=1242150832678973640, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Tab.3, caption=
Radiated sound power from the rectangular inlet protrusion and the protrusion with the trailing-edge serrations of different wavelengths and the noise reduction levels (dB)
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| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 1.8 cm锯齿 | 139.4 | 3.7 | 122.4 | 1.7 |
| 2.4 cm锯齿 | 139.8 | 3.3 | 123.0 | 1.1 |
| 3.0 cm锯齿 | 144.7 | -1.6 | 127.9 | -3.8 |
), ArticleFig(id=1242150832779636939, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=表3, caption=
矩形入口突出体与添加不同波长锯齿尾缘突出体的辐射声功率及降噪量(dB)
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| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 1.8 cm锯齿 | 139.4 | 3.7 | 122.4 | 1.7 |
| 2.4 cm锯齿 | 139.8 | 3.3 | 123.0 | 1.1 |
| 3.0 cm锯齿 | 144.7 | -1.6 | 127.9 | -3.8 |
), ArticleFig(id=1242150832855134414, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Tab.4, caption=
Radiated sound power from the rectangular inlet protrusion and the protrusion with the trailing-edge serrations of different amplitudes and the noise reduction levels (dB)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 0.9 cm锯齿 | 139.4 | 3.7 | 122.4 | 1.7 |
| 1.2 cm锯齿 | 141.3 | 1.8 | 125.3 | -1.2 |
| 1.5 cm锯齿 | 145.2 | -2.1 | 128.7 | -4.6 |
| 1.8 cm锯齿 | 148.1 | -5.0 | 134.9 | -10.8 |
), ArticleFig(id=1242150832922243281, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=表4, caption=
矩形入口突出体与添加不同振幅锯齿尾缘突出体的辐射声功率及降噪量(dB)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 总辐射声功率级 | 降噪量 | 总辐射声功率级 | 降噪量 |
|---|
| (10 Hz~2 kHz) | (10 Hz~2 kHz) | (500 Hz~2 kHz) | (500 Hz~2 kHz) |
|---|
| 原始模型 | 143.1 | \ | 124.1 | \ |
| 0.9 cm锯齿 | 139.4 | 3.7 | 122.4 | 1.7 |
| 1.2 cm锯齿 | 141.3 | 1.8 | 125.3 | -1.2 |
| 1.5 cm锯齿 | 145.2 | -2.1 | 128.7 | -4.6 |
| 1.8 cm锯齿 | 148.1 | -5.0 | 134.9 | -10.8 |
), ArticleFig(id=1242150833006129362, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Tab.5, caption=
Total radiated sound power level of the hydrodynamic noise from the rectangular inlet and the circular inlet protrusions
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| 流速 | 矩形入口突出体模型/dB | 圆形入口突出体模型/dB |
|---|
| 1.26 m/s | 123.8 | 124.5 |
| 4.62 m/s | 129.7 | 132.5 |
| 7.72 m/s | 141.5 | 146.6 |
), ArticleFig(id=1242150833077432533, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=表5, caption=
矩形突出体与圆形突出体水动力噪声的总声功率级
, figureFileSmall=null, figureFileBig=null, tableContent=
| 流速 | 矩形入口突出体模型/dB | 圆形入口突出体模型/dB |
|---|
| 1.26 m/s | 123.8 | 124.5 |
| 4.62 m/s | 129.7 | 132.5 |
| 7.72 m/s | 141.5 | 146.6 |
), ArticleFig(id=1242150833157124311, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=EN, label=Tab.6, caption=
Total sound power level of the hydrodynamic noise from the rectangular inlet protrusion and the rectangular inlet protrusion with different kinds of serrations
, figureFileSmall=null, figureFileBig=null, tableContent=
| 流速 | 矩形入口突出体模型/dB | 添加锯齿前缘突出体模型/dB | 添加锯齿尾缘突出体模型/dB |
|---|
| 1.26 m/s | 123.8 | 122.6 | 122.7 |
| 4.62 m/s | 129.7 | 127.1 | 130.8 |
| 7.72 m/s | 141.5 | 137.4 | 140.8 |
), ArticleFig(id=1242150833232621787, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242150811514515982, language=CN, label=表6, caption=
矩形入口突出体与添加锯齿结构后突出体水动力噪声的总声功率级
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| 流速 | 矩形入口突出体模型/dB | 添加锯齿前缘突出体模型/dB | 添加锯齿尾缘突出体模型/dB |
|---|
| 1.26 m/s | 123.8 | 122.6 | 122.7 |
| 4.62 m/s | 129.7 | 127.1 | 130.8 |
| 7.72 m/s | 141.5 | 137.4 | 140.8 |
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