Article(id=1324025122293691131, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1324025103306072959, 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=1245600000000, receivedDateStr=2009-06-22, revisedDate=1252339200000, revisedDateStr=2009-09-08, acceptedDate=null, acceptedDateStr=null, onlineDate=1793601788351, onlineDateStr=2026-11-02, pubDate=1281801600000, pubDateStr=2010-08-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793601788351, onlineIssueDateStr=2026-11-02, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793601788351, creator=13701087609, updateTime=1793601788351, updator=13701087609, issue=Issue{id=1324025103306072959, tenantId=1146029695717560320, journalId=1255847867265597444, year='2010', volume='24', issue='4', pageStart='241', pageEnd='320', issueExtLink='null', onlineDate='null', pubDate='1281801600000', pubDateStr='2010-08-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793601783825, creator='13701087609', updateTime=1793602712251, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1324028997528584361, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1324025103306072959, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1324028997528584362, tenantId=1146029695717560320, journalId=1255847867265597444, issueId=1324025103306072959, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=286, endPage=292, ext={EN=ArticleExt(id=1324025122717315836, articleId=1324025122293691131, tenantId=1146029695717560320, journalId=1255847867265597444, language=EN, title=Cavitation and Wear in the Micro Jewel Nozzle of Ultra-High Pressure Water Jet, columnId=null, journalTitle=Chinese Journal of High Pressure Physics, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In an ultra-high pressure water jet cutting system, the micro jewel nozzle has important influences on the machining efficiency. Cavitation inside the jewel orifice affects the jet formation directly and is a crucial reason for the nozzle wear. By simulating the cavitation flow in the orifice at pressure within 400 MPa, the jet formation process in the nozzle was expounded. The influence of pressure, the aspect ratio and the inlet shape of orifice on the cavitation and jet were also analyzed. At the same time, an experiment was carried out to study the nozzle wear. The results show that the cavitation region in orifice reduces along the nozzle axis with the increasing of the aspect ratio. Moreover, the cavitation region can reach the nozzle outlet when the aspect ratio is smaller than a certain value. At this condition, the jet initial diameter is smaller than the orifice diameter and increases with the increase of pressure. The orifice inlet with a streamline design can effectively restrict the cavitation development. The wear in the jewel orifice inlet due to the cavitation and water erosion is much more severe than in the outlet and is more serious under higher operating pressure. Accordingly, it is useful to select a appropriate aspect ratio for reducing the erosion in the nozzle.

, authors=Min-Guan YANG, Yu-Li WANG, Can KANG, Feng YU, authorsList=Min-Guan YANG, Yu-Li WANG, Can KANG, Feng YU, authorCompany=null, correspAuthors=Yu-Li WANG, 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=1324025123145134845, articleId=1324025122293691131, tenantId=1146029695717560320, journalId=1255847867265597444, language=CN, title=微型超高压宝石喷嘴内部的空化与磨损, columnId=0, journalTitle=高压物理学报, columnName=, runingTitle=null, highlight=null, articleAbstract=

宝石喷嘴是影响超高压水射流切割系统工作效率的重要部件,而宝石内部的空化直接影响射流的形成,也是宝石磨损的重要原因之一。对400 MPa压力范围内宝石孔内部的空化两相流进行了数值模拟,阐述了射流在宝石内的形成过程,分析了长径比、压力和入口形状对宝石内空化的影响,并在相应压力下对宝石喷嘴的磨损进行了实验研究。结果表明:宝石内部的空化发展程度随着长径比的增大而减弱;在一定的长径比范围内,空化可以发展到喷嘴出口,并最终使射流的初始直径小于喷嘴直径,且在此条件下当压力升高时,射流的初始直径增大;良好的入口形线可以降低空化的发展程度;宝石入口的磨损较出口更显著,空蚀和高压水的冲蚀造成了宝石孔边缘形状的破坏,这种破坏随着压力的升高而加剧,选择合适的长径比是减少冲蚀磨损的有效途径。

, authors=杨敏官, 王育立, 康灿, 喻峰, authorsList=杨敏官, 王育立, 康灿, 喻峰, authorCompany=null, correspAuthors=王育立, authorNote=

杨敏官(1952—),男,教授,博士生导师,主要从事流体机械性能及高压水射流技术研究. E-mail:

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王育立(1984—),男,硕士研究生,主要从事高压水射流技术及相关设备性能研究. E-mail:
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杨敏官(1952—),男,教授,博士生导师,主要从事流体机械性能及高压水射流技术研究. E-mail:

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杨敏官(1952—),男,教授,博士生导师,主要从事流体机械性能及高压水射流技术研究. E-mail:

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微型超高压宝石喷嘴内部的空化与磨损
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杨敏官 , 王育立 , 康灿 , 喻峰
高压物理学报 | 2010,24(4): 286-292
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高压物理学报 | 2010 , 24 (4) : 286 -292
微型超高压宝石喷嘴内部的空化与磨损
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杨敏官 , 王育立 , 康灿, 喻峰
作者信息
  • 江苏大学能源与动力工程学院,江苏 镇江 212013
通讯作者:
王育立(1984—),男,硕士研究生,主要从事高压水射流技术及相关设备性能研究. E-mail:
作者简介:

杨敏官(1952—),男,教授,博士生导师,主要从事流体机械性能及高压水射流技术研究. E-mail:

Cavitation and Wear in the Micro Jewel Nozzle of Ultra-High Pressure Water Jet
Min-Guan YANG , Yu-Li WANG , Can KANG, Feng YU
Affiliations
  • School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China
出版时间: 2010-08-15
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宝石喷嘴是影响超高压水射流切割系统工作效率的重要部件,而宝石内部的空化直接影响射流的形成,也是宝石磨损的重要原因之一。对400 MPa压力范围内宝石孔内部的空化两相流进行了数值模拟,阐述了射流在宝石内的形成过程,分析了长径比、压力和入口形状对宝石内空化的影响,并在相应压力下对宝石喷嘴的磨损进行了实验研究。结果表明:宝石内部的空化发展程度随着长径比的增大而减弱;在一定的长径比范围内,空化可以发展到喷嘴出口,并最终使射流的初始直径小于喷嘴直径,且在此条件下当压力升高时,射流的初始直径增大;良好的入口形线可以降低空化的发展程度;宝石入口的磨损较出口更显著,空蚀和高压水的冲蚀造成了宝石孔边缘形状的破坏,这种破坏随着压力的升高而加剧,选择合适的长径比是减少冲蚀磨损的有效途径。

超高压水射流  /  宝石喷嘴  /  空化  /  磨损

In an ultra-high pressure water jet cutting system, the micro jewel nozzle has important influences on the machining efficiency. Cavitation inside the jewel orifice affects the jet formation directly and is a crucial reason for the nozzle wear. By simulating the cavitation flow in the orifice at pressure within 400 MPa, the jet formation process in the nozzle was expounded. The influence of pressure, the aspect ratio and the inlet shape of orifice on the cavitation and jet were also analyzed. At the same time, an experiment was carried out to study the nozzle wear. The results show that the cavitation region in orifice reduces along the nozzle axis with the increasing of the aspect ratio. Moreover, the cavitation region can reach the nozzle outlet when the aspect ratio is smaller than a certain value. At this condition, the jet initial diameter is smaller than the orifice diameter and increases with the increase of pressure. The orifice inlet with a streamline design can effectively restrict the cavitation development. The wear in the jewel orifice inlet due to the cavitation and water erosion is much more severe than in the outlet and is more serious under higher operating pressure. Accordingly, it is useful to select a appropriate aspect ratio for reducing the erosion in the nozzle.

ultra high pressure water jet  /  jewel nozzle  /  cavitation  /  wear
杨敏官, 王育立, 康灿, 喻峰. 微型超高压宝石喷嘴内部的空化与磨损. 高压物理学报, 2010 , 24 (4) : 286 -292 .
Min-Guan YANG, Yu-Li WANG, Can KANG, Feng YU. Cavitation and Wear in the Micro Jewel Nozzle of Ultra-High Pressure Water Jet[J]. Chinese Journal of High Pressure Physics, 2010 , 24 (4) : 286 -292 .
  • 国家自然科学基金(50806031)
参考文献 引证文献
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2010年第24卷第4期
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  • 接收时间:2009-06-22
  • 首发时间:2026-11-02
  • 出版时间:2010-08-15
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  • 收稿日期:2009-06-22
  • 修回日期:2009-09-08
基金
国家自然科学基金(50806031)
作者信息
    江苏大学能源与动力工程学院,江苏 镇江 212013

通讯作者:

王育立(1984—),男,硕士研究生,主要从事高压水射流技术及相关设备性能研究. E-mail:
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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
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