Article(id=1323358017881780959, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323358016992588511, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1068566400000, receivedDateStr=2003-11-12, revisedDate=1075996800000, revisedDateStr=2004-02-06, acceptedDate=null, acceptedDateStr=null, onlineDate=1793442738266, onlineDateStr=2026-10-31, pubDate=1086364800000, pubDateStr=2004-06-05, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793442738266, onlineIssueDateStr=2026-10-31, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793442738266, creator=13701087609, updateTime=1793442738266, updator=13701087609, issue=Issue{id=1323358016992588511, tenantId=1146029695717560320, journalId=1255847867265597444, year='2004', volume='18', issue='2', pageStart='97', pageEnd='192', issueExtLink='null', onlineDate='null', pubDate='1086364800000', pubDateStr='2004-06-05', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793442738054, creator='13701087609', updateTime=1793442864523, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1323358547513324243, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323358016992588511, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1323358547513324244, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1323358016992588511, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=139, endPage=143, ext={EN=ArticleExt(id=1323358018250879712, articleId=1323358017881780959, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Research on the Pressure Loss in the Generating Process of Hyperpressure Waterjet, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The pressure loss in the generating process of hyperpressure waterjet is theoretically studied in this paper. The velocities of waterjets have been measured under different conditions. On the basis of theoretical results and the experimental data, the initial parameters of the hyperpressure waterjet have been obtained. The results show that the pressure loss in the generating process is mainly resulted from the section shrinkage. The lost pressure is about 49 percent of the final kinetic energy of hyperpressure waterjet. As the nozzle diameter increases, the pressure loss decreases and the output power of the waterjet generating system is enhanced. As waterjet pressure increases, the pressure loss increases, but the increased degree decreases.

, authors=Hai-Jun LI, Yuan-Hang HE, Zhuo-Ping DUAN, Qing-Ming ZHANG, authorsList=Hai-Jun LI, Yuan-Hang HE, Zhuo-Ping DUAN, Qing-Ming ZHANG, authorCompany=null, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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, fund=null), CN=ArticleExt(id=1323358018724836066, articleId=1323358017881780959, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=超高压水射流形成过程中的压力损失研究, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

对超高压水射流形成过程中的压力损失进行了理论研究,并且对不同条件下超高压水射流速度的变化规律进行了实验研究,最后确定了不同条件下超高压水射流的初始参数。结果显示,在超高压水射流形成过程中,压力损失主要是在水流从高压管道进入高压喷嘴时由于流道发生断面收缩而造成的,压力损失大约为最终超高压水射流动能密度的49%;随着喷嘴口径的增大,压力损失减小,整个系统的能量利用率越高;随着水射流压力的增大,压力损失增大,但增大的程度会减小。

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李海军(1977—),男,硕士研究生,主要研究方向为爆炸力学. E-mail:

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李海军(1977—),男,硕士研究生,主要研究方向为爆炸力学. E-mail:

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李海军(1977—),男,硕士研究生,主要研究方向为爆炸力学. E-mail:

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超高压水射流形成过程中的压力损失研究
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李海军 , 何远航 , 段卓平 , 张庆明
高压物理学报 | 2004,18(2): 139-143
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高压物理学报 | 2004 , 18 (2) : 139 -143
超高压水射流形成过程中的压力损失研究
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李海军 , 何远航, 段卓平, 张庆明
作者信息
  • 北京理工大学爆炸与安全科学国家重点实验室,北京 100081
作者简介:

李海军(1977—),男,硕士研究生,主要研究方向为爆炸力学. E-mail:

Research on the Pressure Loss in the Generating Process of Hyperpressure Waterjet
Hai-Jun LI , Yuan-Hang HE, Zhuo-Ping DUAN, Qing-Ming ZHANG
Affiliations
  • State Key Laboratory of Science of Explosion and Safety, Beijing Institute of Technology, Beijing 100081, China
出版时间: 2004-06-05
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对超高压水射流形成过程中的压力损失进行了理论研究,并且对不同条件下超高压水射流速度的变化规律进行了实验研究,最后确定了不同条件下超高压水射流的初始参数。结果显示,在超高压水射流形成过程中,压力损失主要是在水流从高压管道进入高压喷嘴时由于流道发生断面收缩而造成的,压力损失大约为最终超高压水射流动能密度的49%;随着喷嘴口径的增大,压力损失减小,整个系统的能量利用率越高;随着水射流压力的增大,压力损失增大,但增大的程度会减小。

超高压水射流  /  压力损失  /  断面收缩  /  喷嘴直径  /  水射流压力

The pressure loss in the generating process of hyperpressure waterjet is theoretically studied in this paper. The velocities of waterjets have been measured under different conditions. On the basis of theoretical results and the experimental data, the initial parameters of the hyperpressure waterjet have been obtained. The results show that the pressure loss in the generating process is mainly resulted from the section shrinkage. The lost pressure is about 49 percent of the final kinetic energy of hyperpressure waterjet. As the nozzle diameter increases, the pressure loss decreases and the output power of the waterjet generating system is enhanced. As waterjet pressure increases, the pressure loss increases, but the increased degree decreases.

hyperpressure waterjet  /  pressure loss  /  section shrinkage  /  nozzle diameter  /  waterjet pressure
李海军, 何远航, 段卓平, 张庆明. 超高压水射流形成过程中的压力损失研究. 高压物理学报, 2004 , 18 (2) : 139 -143 .
Hai-Jun LI, Yuan-Hang HE, Zhuo-Ping DUAN, Qing-Ming ZHANG. Research on the Pressure Loss in the Generating Process of Hyperpressure Waterjet[J]. Chinese Journal of High Pressure Physics, 2004 , 18 (2) : 139 -143 .
  • 国家自然科学基金(10172019)
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[1]
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2004年第18卷第2期
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  • 接收时间:2003-11-12
  • 首发时间:2026-10-31
  • 出版时间:2004-06-05
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  • 收稿日期:2003-11-12
  • 修回日期:2004-02-06
基金
国家自然科学基金(10172019)
作者信息
    北京理工大学爆炸与安全科学国家重点实验室,北京 100081
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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