Article(id=1263819606569960112, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, articleNumber=null, orderNo=null, doi=10.19693/j.issn.1673-3185.04602, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1751904000000, receivedDateStr=2025-07-08, revisedDate=1757692800000, revisedDateStr=2025-09-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1779247674839, onlineDateStr=2026-05-20, pubDate=1777478400000, pubDateStr=2026-04-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1779247674839, onlineIssueDateStr=2026-05-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1779247674839, creator=13041195026, updateTime=1779247674839, updator=13041195026, issue=Issue{id=1263818962224165389, tenantId=1146029695717560320, journalId=1263530845441638439, year='2026', volume='21', issue='2', pageStart='1', pageEnd='444', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1779247521215, creator=13041195026, updateTime=1779247861438, updator=13041195026, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1263820389638070544, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1263820389638070545, tenantId=1146029695717560320, journalId=1263530845441638439, issueId=1263818962224165389, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=240, endPage=255, ext={EN=ArticleExt(id=1263819608239293106, articleId=1263819606569960112, tenantId=1146029695717560320, journalId=1263530845441638439, language=EN, title=Study on noise reduction of pump-jet propulsors based on porous media stator leading edges, columnId=1263818964086436367, journalTitle=Chinese Journal of Ship Research, columnName=Overall Design Technology of Unmanned Underwater Systems, runingTitle=null, highlight=null, articleAbstract=
Objective To suppress hydrodynamic noise at the source, a noise reduction method for pump-jet propulsors based on porous media is proposed.
Methods By replacing the metallic leading edges of the stator blades of the pump-jet propulsor with porous materials, the interaction between the blade wake and the inner wall of the duct can be effectively modulated, thereby reducing wall pressure fluctuations. Large eddy simulation (LES), combined with acoustic analogy analysis, was employed to investigate the flow characteristics and noise control performance of the stator blades with porous leading edges. The mechanisms by which the porous media modulates the flow field and suppresses noise were analyzed, and the effects of key parameters, such as porosity and advance coefficient, on hydrodynamic noise control were examined.
Results Comparative results indicate that the porous leading edges of the stator significantly reduce the low-frequency sound pressure level components on the duct wall and the far-field radiation noise. The maximum reduction in the sound pressure level (SPL) reaches 5.52 dB in the direction perpendicular to the rotation axis of the pump-jet propulsor.
Conclusion The findings of this study provide useful guidance for flow control and hydrodynamic noise reduction in pump-jet propulsors.
, correspAuthors=Jianguo ZHENG, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright © 2026 Chinese Journal of Ship Research. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, authorCompany=null, fund=null, authors=null, authorsList=Jianguo ZHENG, Hao WEN, Yijun MAO), CN=ArticleExt(id=1263819642372538436, articleId=1263819606569960112, tenantId=1146029695717560320, journalId=1263530845441638439, language=CN, title=基于多孔介质定子前缘的泵喷推进器降噪研究, columnId=1263818964476506641, journalTitle=中国舰船研究, columnName=水下无人系统总体设计技术, runingTitle=null, highlight=null, articleAbstract=
目的 为从源头上抑制水动力噪声,提出一种基于多孔介质的泵喷推进器降噪方法。
方法 通过将泵喷推进器定子叶片的金属前缘替换为多孔介质材料,以有效调控叶片尾流与导管内壁面的相互干涉,进而降低壁面压力脉动。采用大涡模拟和声学类比分析,开展基于定子叶片多孔介质前缘的流动与噪声控制分析,研究多孔介质对流场的调制机制和噪声抑制效果,得出孔隙率与进速系数等不同性质参数对水动力噪声控制的影响规律。
结果 对比结果表明,定子前缘多孔介质的调控作用有效降低了导管壁面的低频段声压级分量和远场辐射噪声,其中泵喷推进器在垂直于旋转轴方向的噪声声压级的最大降幅为5.52 dB。
结论 研究成果可为泵喷推进器的流动与水动力噪声控制提供参考。
, correspAuthors=郑建国, authorNote=null, correspAuthorsNote=
* 郑建国
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文豪,男,2000年生,硕士生。研究方向:流动控制
毛义军,男,1981年生,博士,教授。研究方向:流动噪声
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Computers & Fluids, 2013, 88: 834–849., articleTitle=null, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1263819645291774038, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, xref=null, ext=[AuthorCompanyExt(id=1263819645300162647, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, companyId=1263819645291774038, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China), AuthorCompanyExt(id=1263819645312745560, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, companyId=1263819645291774038, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=华中科技大学 航空航天学院,湖北 武汉 430074)])], figs=[ArticleFig(id=1263819654968033509, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.1, caption=
Flow characteristics of pump-jet propulsor, figureFileSmall=Z4iVBOGqJc4npnYjmb3uew==, figureFileBig=RTeKFwiXA0f4TMT70UZjcQ==, tableContent=null), ArticleFig(id=1263819655135805675, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图1, caption=
泵喷推进器的流动特征, figureFileSmall=Z4iVBOGqJc4npnYjmb3uew==, figureFileBig=RTeKFwiXA0f4TMT70UZjcQ==, tableContent=null), ArticleFig(id=1263819655538458874, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.2, caption=
Schematic diagram of porous-media acoustic liner[20], figureFileSmall=f2zxKpM5B1YLikCz+SJJEg==, figureFileBig=FoK2+m5PvrQmEW1/nAPtmQ==, tableContent=null), ArticleFig(id=1263819657568502016, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图2, caption=
多孔介质声衬示意图[20], figureFileSmall=f2zxKpM5B1YLikCz+SJJEg==, figureFileBig=FoK2+m5PvrQmEW1/nAPtmQ==, tableContent=null), ArticleFig(id=1263819657891463429, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.3, caption=
DARPA Suboff submarine-pump-jet propulsor integrated model, figureFileSmall=VoIs/Wy2Xydv+yUymxPVZg==, figureFileBig=Og7XhWuaHioF56+ilyTeWg==, tableContent=null), ArticleFig(id=1263819658004709640, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图3, caption=
DARPA Suboff潜艇−泵喷推进器组合模型, figureFileSmall=VoIs/Wy2Xydv+yUymxPVZg==, figureFileBig=Og7XhWuaHioF56+ilyTeWg==, tableContent=null), ArticleFig(id=1263819658084401421, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.4, caption=
Geometry of the pump-jet propulsor, figureFileSmall=Izcq39WcEwtws1+2oNmTiA==, figureFileBig=lOwLX8NHtkaHkeFOgNe98A==, tableContent=null), ArticleFig(id=1263819658323476755, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图4, caption=
泵喷推进器几何构型, figureFileSmall=Izcq39WcEwtws1+2oNmTiA==, figureFileBig=lOwLX8NHtkaHkeFOgNe98A==, tableContent=null), ArticleFig(id=1263819658394779926, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.5, caption=
Stator blade configurations, figureFileSmall=zWiSAJAui4EVgYBAtaVLUA==, figureFileBig=IVxEsOaw006Ud+XW1UeA9g==, tableContent=null), ArticleFig(id=1263819658638049565, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图5, caption=
定子叶片构型, figureFileSmall=zWiSAJAui4EVgYBAtaVLUA==, figureFileBig=IVxEsOaw006Ud+XW1UeA9g==, tableContent=null), ArticleFig(id=1263819658763878692, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.6, caption=
Schematic diagram of computational domain and boundary conditions, figureFileSmall=ulJaKaT6pPabf4DR7fI5/A==, figureFileBig=OEg3W8Dro979pP+PzFnv0w==, tableContent=null), ArticleFig(id=1263819658872930601, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图6, caption=
计算域及边界条件示意图, figureFileSmall=ulJaKaT6pPabf4DR7fI5/A==, figureFileBig=OEg3W8Dro979pP+PzFnv0w==, tableContent=null), ArticleFig(id=1263819659099423022, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.7, caption=
Mesh generation, figureFileSmall=v78/eRikbWmFLFWZsBSABA==, figureFileBig=VitqZrNJe24bjZBF1n/aKg==, tableContent=null), ArticleFig(id=1263819659250417973, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图7, caption=
网格划分, figureFileSmall=v78/eRikbWmFLFWZsBSABA==, figureFileBig=VitqZrNJe24bjZBF1n/aKg==, tableContent=null), ArticleFig(id=1263819659493687610, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.8, caption=
Distribution of root mean square (RMS) pressure on the rotor and stator blades, figureFileSmall=Kqk1e1c8qjGmmpiTQKufiQ==, figureFileBig=vFEDL9y+DVuYCGSyDv5IPA==, tableContent=null), ArticleFig(id=1263819660131221823, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图8, caption=
转子叶片与定子叶片压力均方根值的分布情况, figureFileSmall=Kqk1e1c8qjGmmpiTQKufiQ==, figureFileBig=vFEDL9y+DVuYCGSyDv5IPA==, tableContent=null), ArticleFig(id=1263819660261245251, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.9, caption=
Distribution of RMS pressure on the duct wall, figureFileSmall=BNO9nsjy/2As5FQVP5sVqw==, figureFileBig=Mnqvu2ovXqzCC6pZe/EvMQ==, tableContent=null), ArticleFig(id=1263819662190625102, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图9, caption=
导管壁面压力均方根值的分布情况, figureFileSmall=BNO9nsjy/2As5FQVP5sVqw==, figureFileBig=Mnqvu2ovXqzCC6pZe/EvMQ==, tableContent=null), ArticleFig(id=1263819662563918164, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.10, caption=
Comparison of pressure fluctuation distribution on the duct wall at the first rotational frequency, figureFileSmall=f0oFWZ16+Xx0u9roK3r95g==, figureFileBig=i2615yMo45yktsngsBZFGA==, tableContent=null), ArticleFig(id=1263819662761050459, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图10, caption=
第1阶旋转频率下导管壁面压力脉动分布对比, figureFileSmall=f0oFWZ16+Xx0u9roK3r95g==, figureFileBig=i2615yMo45yktsngsBZFGA==, tableContent=null), ArticleFig(id=1263819663235006817, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.11, caption=
Comparison of pressure fluctuation distribution on the duct wall at the second rotational frequency, figureFileSmall=P6zNapJR6FyNvH8Ca81sQw==, figureFileBig=RchNpXsL88M9xIXZu+pY3g==, tableContent=null), ArticleFig(id=1263819663566356843, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图11, caption=
第2阶旋转频率下导管壁面压力脉动分布对比, figureFileSmall=P6zNapJR6FyNvH8Ca81sQw==, figureFileBig=RchNpXsL88M9xIXZu+pY3g==, tableContent=null), ArticleFig(id=1263819663843180914, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.12, caption=
Locations of annular monitoring surfaces on the stator in the flow field, figureFileSmall=mMCTVbqeYHPEKrvJVDmTTQ==, figureFileBig=npZx24/2XZw28BFS+awM1w==, tableContent=null), ArticleFig(id=1263819664153559417, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图12, caption=
流场内定子的环形监测面位置, figureFileSmall=mMCTVbqeYHPEKrvJVDmTTQ==, figureFileBig=npZx24/2XZw28BFS+awM1w==, tableContent=null), ArticleFig(id=1263819664560406909, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.13, caption=
Comparison results of streamwise vorticity at the S1 annular surface, figureFileSmall=+4SolngWVoR1uYnDoVisGQ==, figureFileBig=YCaRj+ZjyeNTFftuUrRhHQ==, tableContent=null), ArticleFig(id=1263819665009197443, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图13, caption=
S1环形截面处的流向涡量对比结果, figureFileSmall=+4SolngWVoR1uYnDoVisGQ==, figureFileBig=YCaRj+ZjyeNTFftuUrRhHQ==, tableContent=null), ArticleFig(id=1263819666603032969, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.14, caption=
Comparison results of streamwise vorticity at the S2 annular surface, figureFileSmall=8WhsN7S31TL4IbnaIZamLQ==, figureFileBig=zA26XDUWbmsZcg6fEECOIg==, tableContent=null), ArticleFig(id=1263819666728862095, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图14, caption=
S2环形截面处的流向涡量对比结果, figureFileSmall=8WhsN7S31TL4IbnaIZamLQ==, figureFileBig=zA26XDUWbmsZcg6fEECOIg==, tableContent=null), ArticleFig(id=1263819667106349460, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.15, caption=
Comparison results of streamwise vorticity at the S3 annular surface, figureFileSmall=VRac2oMYdDC9JefziZD7MA==, figureFileBig=tw8IJJPRMJq+faB6KJ4bag==, tableContent=null), ArticleFig(id=1263819667416727963, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图15, caption=
S3环形截面处的流向涡量对比结果, figureFileSmall=VRac2oMYdDC9JefziZD7MA==, figureFileBig=tw8IJJPRMJq+faB6KJ4bag==, tableContent=null), ArticleFig(id=1263819668243005860, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.16, caption=
Streamwise velocity profiles downstream of the stator blade leading edge, figureFileSmall=7IOfZeVQCFJIjLZyqhBiAw==, figureFileBig=P4T7cp3yLPJsjSv7qflKvA==, tableContent=null), ArticleFig(id=1263819668574355882, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图16, caption=
定子叶片前缘下游处的流向速度剖面, figureFileSmall=7IOfZeVQCFJIjLZyqhBiAw==, figureFileBig=P4T7cp3yLPJsjSv7qflKvA==, tableContent=null), ArticleFig(id=1263819668813431215, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.17, caption=
Schematic diagram of far-field noise monitoring points, figureFileSmall=1QvwsIbohfne025F6U9hpw==, figureFileBig=YYlS4VdRTZnGbxln+CqRuw==, tableContent=null), ArticleFig(id=1263819669077672371, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图17, caption=
远场噪声监测点示意图, figureFileSmall=1QvwsIbohfne025F6U9hpw==, figureFileBig=YYlS4VdRTZnGbxln+CqRuw==, tableContent=null), ArticleFig(id=1263819670851862967, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.18, caption=
Far-field radiation noise directivity of the original pump-jet propulsor and its components, figureFileSmall=VOsPIl4Qm/9L8yv0fySKew==, figureFileBig=MOJZOC/758be4ZHtICaVSg==, tableContent=null), ArticleFig(id=1263819671069966782, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图18, caption=
原始泵喷推进器及其组件的远场辐射噪声指向性图, figureFileSmall=VOsPIl4Qm/9L8yv0fySKew==, figureFileBig=MOJZOC/758be4ZHtICaVSg==, tableContent=null), ArticleFig(id=1263819671267099074, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.19, caption=
Comparison of far-field radiation noise SPL and directivity of the pump-jet propulsor with metalic and porous-media stator blade leading edges, figureFileSmall=ewmzhbvhMV62IzPD7ckNAA==, figureFileBig=EGlw9gW2c4998SZHeMxrmg==, tableContent=null), ArticleFig(id=1263819671564894663, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图19, caption=
定子金属前缘与多孔介质前缘工况下泵喷推进器远场辐射噪声的声压级及指向性对比, figureFileSmall=ewmzhbvhMV62IzPD7ckNAA==, figureFileBig=EGlw9gW2c4998SZHeMxrmg==, tableContent=null), ArticleFig(id=1263819671975936461, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.20, caption=
Comparison of overall SPLspectra of the pump-jet propulsor at different noise monitoring points, figureFileSmall=/lI/tKKb4pg2y0EVivQKpw==, figureFileBig=RX0VhFCk1r+ShUFeH+V3BA==, tableContent=null), ArticleFig(id=1263819672235983313, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图20, caption=
不同噪声监测点处的泵喷推进器总声压级频谱对比, figureFileSmall=/lI/tKKb4pg2y0EVivQKpw==, figureFileBig=RX0VhFCk1r+ShUFeH+V3BA==, tableContent=null), ArticleFig(id=1263819672558944726, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.21, caption=
Comparison of far-field radiated noise directivity of individual components of the pump-jet propulsor with metalic and porous-media stator blade leading edges, figureFileSmall=xreykEDWiiHg4RcMLIfJ0A==, figureFileBig=odgmGCmNtBHGcASzQsnTJQ==, tableContent=null), ArticleFig(id=1263819673079038430, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图21, caption=
定子金属前缘与多孔介质前缘工况下泵喷推进器各组件的远场辐射噪声指向性对比, figureFileSmall=xreykEDWiiHg4RcMLIfJ0A==, figureFileBig=odgmGCmNtBHGcASzQsnTJQ==, tableContent=null), ArticleFig(id=1263819673456525800, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.22, caption=
Comparison of SPL spectra at monitoring point P5 under metalic and porous-media stator blade leading edges for the pump-jet propulsor and its components, figureFileSmall=mJAQFFVLfSpiv9B22WLTIQ==, figureFileBig=X0RNUTA/W59nAtGBNm4QTg==, tableContent=null), ArticleFig(id=1263819673666241005, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图22, caption=
定子金属前缘与多孔介质前缘工况下泵喷推进器及其各组件在监测点P5处的声压级频谱对比, figureFileSmall=mJAQFFVLfSpiv9B22WLTIQ==, figureFileBig=X0RNUTA/W59nAtGBNm4QTg==, tableContent=null), ArticleFig(id=1263819675457208817, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.23, caption=
Comparison of pressure fluctuation components at the first blade rotational frequency on the duct wall under different porosities, figureFileSmall=gXlxbdz/IKluEJ50JOVvsg==, figureFileBig=4WmVbQf+mC9cvCtqodLwDg==, tableContent=null), ArticleFig(id=1263819675843084794, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图23, caption=
不同孔隙率导管壁面第1阶旋转频率下压力脉动分量对比, figureFileSmall=gXlxbdz/IKluEJ50JOVvsg==, figureFileBig=4WmVbQf+mC9cvCtqodLwDg==, tableContent=null), ArticleFig(id=1263819676262515201, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.24, caption=
Comparison of streamwise velocity profiles at the S1 surface under different porosities, figureFileSmall=EJX1H3A58NcWUQuSiCxkIA==, figureFileBig=kPv8q4IPeDmfUWeheOGriQ==, tableContent=null), ArticleFig(id=1263819676472230409, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图24, caption=
不同孔隙率S1截面处流向速度剖面对比, figureFileSmall=EJX1H3A58NcWUQuSiCxkIA==, figureFileBig=kPv8q4IPeDmfUWeheOGriQ==, tableContent=null), ArticleFig(id=1263819677126541842, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.25, caption=
Comparison of streamwise velocity profiles at S2 surface under different porosities, figureFileSmall=x2i2o29PE3arDPfRJcQEUw==, figureFileBig=YlnqK9vBPVMAu1dsyluW5g==, tableContent=null), ArticleFig(id=1263819677269148181, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图25, caption=
不同孔隙率S2截面处流向速度剖面对比, figureFileSmall=x2i2o29PE3arDPfRJcQEUw==, figureFileBig=YlnqK9vBPVMAu1dsyluW5g==, tableContent=null), ArticleFig(id=1263819677793436188, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.26, caption=
Comparison of streamwise velocity profiles at S3 surface under different porosities, figureFileSmall=9mhkt/InzayP4AnBew/gMw==, figureFileBig=lZABdE+2d5hNgiK3Mvoq8Q==, tableContent=null), ArticleFig(id=1263819678279975454, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图26, caption=
不同孔隙率S3截面处流向速度剖面对比, figureFileSmall=9mhkt/InzayP4AnBew/gMw==, figureFileBig=lZABdE+2d5hNgiK3Mvoq8Q==, tableContent=null), ArticleFig(id=1263819679659901475, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.27, caption=
Comparison of far-field radiated noise SPL and directivity of the pump-jet propulsor under different porosities, figureFileSmall=yEK2infD6mMETcG2P8FIHA==, figureFileBig=U9YR983tpXrj9HmCYA/L5w==, tableContent=null), ArticleFig(id=1263819679873810983, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图27, caption=
不同孔隙率泵喷推进器远场辐射噪声声压级及指向性对比, figureFileSmall=yEK2infD6mMETcG2P8FIHA==, figureFileBig=U9YR983tpXrj9HmCYA/L5w==, tableContent=null), ArticleFig(id=1263819680054166059, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.28, caption=
Comparison of tonal components at the first blade rotational frequency fr in far-field radiated noise SPL at monitoring point P5 for the pump-jet propulsor with different porosities, figureFileSmall=XZvPCr7KS8AxzVMNSxzuQA==, figureFileBig=xfnTiMDNcKe7cgAGzLNPzA==, tableContent=null), ArticleFig(id=1263819680230326833, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图28, caption=
不同孔隙率泵喷推进器远场(监测点P5)辐射噪声声压级在第1阶旋转频率fr处的单音噪声分量对比, figureFileSmall=XZvPCr7KS8AxzVMNSxzuQA==, figureFileBig=xfnTiMDNcKe7cgAGzLNPzA==, tableContent=null), ArticleFig(id=1263819680498762294, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.29, caption=
Effects of porous-media leading edges on far-field radiated noise SPL and directivity of the pump-jet propulsor under different advance coefficients, figureFileSmall=mFTcDaIeJ6ccr5GOsvHfww==, figureFileBig=RfKKL/PgGTHw28MuvejdqQ==, tableContent=null), ArticleFig(id=1263819680817529401, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图29, caption=
不同进速系数下多孔介质前缘对泵喷推进器远场辐射噪声声压级及指向性的影响规律, figureFileSmall=mFTcDaIeJ6ccr5GOsvHfww==, figureFileBig=RfKKL/PgGTHw28MuvejdqQ==, tableContent=null), ArticleFig(id=1263819680934969919, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Fig.30, caption=
Comparison of effects of porous-media leading edges on SPL spectra at monitoring point P5 of the pump-jet propulsor under different advance coefficients, figureFileSmall=r0CrEFKDsYnwjKtswdZgZA==, figureFileBig=RJSb2wE682aGFBd6uLbi0g==, tableContent=null), ArticleFig(id=1263819681132102213, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=图30, caption=
不同进速系数下多孔介质前缘对泵喷推进器监测点P5处声压级频谱的影响规律对比, figureFileSmall=r0CrEFKDsYnwjKtswdZgZA==, figureFileBig=RJSb2wE682aGFBd6uLbi0g==, tableContent=null), ArticleFig(id=1263819681337623115, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=EN, label=Tab.1, caption=
Comparison between calculated and experimental results of pump-jet propulsor thrust
, figureFileSmall=null, figureFileBig=null, tableContent=
| 对比结果 | 主频/Hz | 主频峰值/(N·Hz−1) |
| 计算值 | 71.4 | 0.120 |
| 实验值[26] | 72.1 | 0.123 |
), ArticleFig(id=1263819681727693390, tenantId=1146029695717560320, journalId=1263530845441638439, articleId=1263819606569960112, language=CN, label=表1, caption=
泵喷推进器推力计算与实验结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 对比结果 | 主频/Hz | 主频峰值/(N·Hz−1) |
| 计算值 | 71.4 | 0.120 |
| 实验值[26] | 72.1 | 0.123 |
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