Article(id=1319293129300234818, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293088569344063, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.04.014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1730217600000, receivedDateStr=2024-10-30, revisedDate=1740758400000, revisedDateStr=2025-03-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473593306, onlineDateStr=2026-10-20, pubDate=1745942400000, pubDateStr=2025-04-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473593306, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473593306, creator=13701087609, updateTime=1792473593306, updator=13701087609, issue=Issue{id=1319293088569344063, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='4', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1745942400000', pubDateStr='2025-04-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473583595, creator='13701087609', updateTime=1792473583595, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=102, endPage=109, ext={EN=ArticleExt(id=1319293129451229763, articleId=1319293129300234818, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Dynamic flow field analysis of sliding valves based on overset mesh, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
To investigate the influence of different spool structures on the internal flow field of sliding valves during dynamic motion,unsteady simulations based on the overset mesh method were conducted to analyze the dynamic characteristics of the flow field in sliding valves with three spool types (standard spool,dual‑curve spool,and turbine‑blade spool,corresponding to outlet jet angles of 90°,45°,and 30°). The spool and valve chamber domains were defined in the foreground and background meshes respectively,enabling dynamic fluid domain variation during spool movement to simulate valve opening/closing. Results indicate that under a 1 MPa inlet‑outlet pressure difference,the maximum flow velocity reaches 50 m/s,generating lateral hydraulic forces up to 100 N. Dynamic changes in spool displacement significantly affect velocity,pressure,and turbulence distributions. Curved spools (dual‑curve and turbine‑blade) effectively reduce maximum turbulent kinetic energy (TKE) and outlet negative pressure backflow. The standard spool exhibits flow oscillation and negative pressure backflow during bidirectional regulation,causing flow instability with maximum TKE≈400 J/kg. The symmetric dual‑curve spool shows smaller directional dependence in flow fluctuations (maximum TKE≈330 J/kg). The turbine‑blade spool demonstrates superior flow regulation,pressure distribution,and turbulence suppression due to its enlarged inflow boundary. These results provide theoretical foundations and design guidelines for high‑precision sliding valves.
, authors=Zhicheng YUAN
1, Meng YANG
1, 2, Tianming YE
3, Yongming BIAN
1, 2, Zeran HOU
1, authorsList=Zhicheng YUAN, Meng YANG, Tianming YE, Yongming BIAN, Zeran HOU, authorCompany=null, correspAuthors=Zeran HOU, 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=1319293133200937566, articleId=1319293129300234818, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=基于重叠网格的滑阀流场动态特性分析, columnId=1317484300472271469, journalTitle=流体机械, columnName=应用技术, runingTitle=null, highlight=null, articleAbstract=
为了揭示不同结构阀芯在动态滑移过程中对滑阀内部流场的影响,借助基于重叠网格方法的非定常仿真技术,分析了3种阀芯(典型阀芯、双曲阀芯和涡轮叶片式阀芯,阀门出口射流角分别为90°,45°和30°)移动时滑阀内部流场的动态特性。其中,阀芯和阀腔计算域分别设置在前景网格和背景网格,随着阀芯的运动,阀腔内的流体域相应发生变化,从而达到滑阀启闭的效果。结果表明,1 MPa的进、出口压差条件下,滑阀内部流场速度最大可达50 m/s,对滑阀产生的横向液动力最大可达100 N;阀芯位移大小和方向的动态变化对滑阀内流场的速度、压力和湍流分布影响较大,且圆弧形阀芯(双曲阀芯和涡轮叶片式阀芯)能够明显降低阀腔内最大湍流动能和出口负压回流;典型滑阀在正反方向调节过程中出现流量振荡和负压回流现象,导致流场不稳定,湍动能最大约为400 J/kg;双曲滑阀结构对称,阀口开度相同时,阀芯移动方向对流场的波动特性影响较小,湍动能最大约为330 J/kg;涡轮叶片式滑阀因其较大的入流边界,表现出优越的流量调节、压力分布和湍流抑制能力。研究结果可为高精度滑阀的设计提供理论基础和设计准则。
, authors=袁志成
1, 杨濛
1, 2, 叶天明
3, 卞永明
1, 2, 侯泽然
1, authorsList=袁志成, 杨濛, 叶天明, 卞永明, 侯泽然, authorCompany=null, correspAuthors=侯泽然, authorNote=
, correspAuthorsNote=
侯泽然(1989),男,博士,助理教授,硕士研究生导师,主要研究方向为汽车轻量化和材料成型等,通信地址:上海市嘉定区曹安公路4800号同济大学机械与能源工程学院,E-mail:
zeranhou@tongji.edu.cn。
, copyrightStatement=
作者向本刊所投稿件一经本刊录用,则该论文的复制权、发行权、信息网络传播权、翻译权、汇编权等权利视为自动转让给本刊。本刊为国内各主要数据库收录期刊,本刊所发表的稿件将同时通过互联网进行网络出版或提供信息服务。, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=qayyALSz/e2pIRN17pazbg==, magXml=oxPata5334jwocuZnfd7zw==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=XN3cBM7qTditaLjCjWYthw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=HizTydrB8lCBFc1oVPA74Q==, mapNumber=null, fund=null)}, authors=[Author(id=1319293134190793321, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhicheng_yuan@tongji.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293134283068011, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, authorId=1319293134190793321, language=EN, stringName=Zhicheng YUAN, firstName=Zhicheng, middleName=null, lastName=YUAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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袁志成(1991),男,博士,特聘研究员,博士研究生导师,主要研究方向为微流控、动态润湿、传质传热等,E-mail:zhicheng_yuan@tongji.edu.cn。
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袁志成(1991),男,博士,特聘研究员,博士研究生导师,主要研究方向为微流控、动态润湿、传质传热等,E-mail:zhicheng_yuan@tongji.edu.cn。
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1同济大学 机械与能源工程学院,上海 201804
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1同济大学 机械与能源工程学院,上海 201804
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Slide valve indication of different structure valve core, figureFileSmall=jU0h0KGR5lBFcMPETaYVGw==, figureFileBig=XN3cBM7qTditaLjCjWYthw==, tableContent=null), ArticleFig(id=1319293140171870861, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图1, caption=
不同结构阀芯的滑阀示意(a)典型滑阀 (b)双曲滑阀 (c)涡轮叶片式滑阀
, figureFileSmall=jU0h0KGR5lBFcMPETaYVGw==, figureFileBig=XN3cBM7qTditaLjCjWYthw==, tableContent=null), ArticleFig(id=1319293140327060110, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.2, caption=
Change curve of slide valve speed and displacement with time, figureFileSmall=cNjPwTkCfuaSqlkO+oBITg==, figureFileBig=sp2bahKiaMhjuM5u8TFE4w==, tableContent=null), ArticleFig(id=1319293141950255760, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图2, caption=
滑阀速度和位移随时间的变化曲线, figureFileSmall=cNjPwTkCfuaSqlkO+oBITg==, figureFileBig=sp2bahKiaMhjuM5u8TFE4w==, tableContent=null), ArticleFig(id=1319293142025753233, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.3, caption=
Overlapping grids and boundary conditions, figureFileSmall=c6GeJsdh4cmxP46rbYI6WA==, figureFileBig=XzuXbd/CVm+K713YBGAyog==, tableContent=null), ArticleFig(id=1319293142101250706, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图3, caption=
重叠网格和边界条件, figureFileSmall=c6GeJsdh4cmxP46rbYI6WA==, figureFileBig=XzuXbd/CVm+K713YBGAyog==, tableContent=null), ArticleFig(id=1319293142172553875, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.4, caption=
Grid independence verification, figureFileSmall=Xm1NNHPrz6OvO4i/FAHN0g==, figureFileBig=IMQFd9jEF8lmu/RWfU1jDw==, tableContent=null), ArticleFig(id=1319293142269022868, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图4, caption=
网格无关性验证, figureFileSmall=Xm1NNHPrz6OvO4i/FAHN0g==, figureFileBig=IMQFd9jEF8lmu/RWfU1jDw==, tableContent=null), ArticleFig(id=1319293142352908949, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.5, caption=
Test verification, figureFileSmall=0OKkGs4M/HF/hygog8b7hA==, figureFileBig=/NY/3+h4LNpaubdRgnvGmQ==, tableContent=null), ArticleFig(id=1319293142415823510, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图5, caption=
试验验证, figureFileSmall=0OKkGs4M/HF/hygog8b7hA==, figureFileBig=/NY/3+h4LNpaubdRgnvGmQ==, tableContent=null), ArticleFig(id=1319293142508098199, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.6, caption=
The transient velocity cloud diagram in the spool valve chamber, figureFileSmall=CM/6wi3gmJNXY1wNtuRSLw==, figureFileBig=TV6Ohezv2Jx2WwSsGPdmpA==, tableContent=null), ArticleFig(id=1319293142583595672, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图6, caption=
滑阀腔内的瞬态速度云图, figureFileSmall=CM/6wi3gmJNXY1wNtuRSLw==, figureFileBig=TV6Ohezv2Jx2WwSsGPdmpA==, tableContent=null), ArticleFig(id=1319293142671676057, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.7, caption=
The transient pressure cloud diagram in the spool valve chamber, figureFileSmall=QEDvGFT7OwsYyAQI8KOZgA==, figureFileBig=gplqgJfo62EUZuLOmPN3Eg==, tableContent=null), ArticleFig(id=1319293142747173530, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图7, caption=
滑阀腔内的瞬态压力云图, figureFileSmall=QEDvGFT7OwsYyAQI8KOZgA==, figureFileBig=gplqgJfo62EUZuLOmPN3Eg==, tableContent=null), ArticleFig(id=1319293142818476699, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.8, caption=
The transient turbulent kinetic energy cloud diagram in the spool valve chamber, figureFileSmall=rPm4qQfX+D1vpWuhwzWr5g==, figureFileBig=8I8P2gpoQIM7M4yCY109Rw==, tableContent=null), ArticleFig(id=1319293142948500124, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图8, caption=
滑阀腔内的瞬态湍动能云图, figureFileSmall=rPm4qQfX+D1vpWuhwzWr5g==, figureFileBig=8I8P2gpoQIM7M4yCY109Rw==, tableContent=null), ArticleFig(id=1319293143019803293, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.9, caption=
Velocity vector of flow field at valve port, figureFileSmall=USOzhUqtum48qFnGF0R6mQ==, figureFileBig=wwAJQUkY/RUGpqvZF4lpaw==, tableContent=null), ArticleFig(id=1319293143091106462, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图9, caption=
阀口处流场速度矢量(a)典型滑阀 (b)双曲滑阀 (c)涡轮叶片式滑阀
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The variation curve of outlet mass flow rate with time, figureFileSmall=dThXbkVFm/stYKxD/FyJJw==, figureFileBig=LVXTb8SORxBANibCVv/FXQ==, tableContent=null), ArticleFig(id=1319293143233712800, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图10, caption=
出口质量流量随时间的变化曲线, figureFileSmall=dThXbkVFm/stYKxD/FyJJw==, figureFileBig=LVXTb8SORxBANibCVv/FXQ==, tableContent=null), ArticleFig(id=1319293143313404577, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.11, caption=
The curve of the static pressure of the fluid on the valve core with time, figureFileSmall=Js7gmIqTc6yC6Z92UtgfLA==, figureFileBig=jiRR+s3Cqdhb4vORsXYI1Q==, tableContent=null), ArticleFig(id=1319293143393096354, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图11, caption=
流体对阀芯的静压力随时间的变化曲线, figureFileSmall=Js7gmIqTc6yC6Z92UtgfLA==, figureFileBig=jiRR+s3Cqdhb4vORsXYI1Q==, tableContent=null), ArticleFig(id=1319293143468593827, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Fig.12, caption=
The variation curve of maximum turbulent kinetic energy with time in the flow field, figureFileSmall=Jqc8Ks1jRY1E1nXhGBwRRg==, figureFileBig=hgZits9CJT1jcbgkNiOCiQ==, tableContent=null), ArticleFig(id=1319293143565062820, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=图12, caption=
流场内最大湍动能随时间的变化曲线, figureFileSmall=Jqc8Ks1jRY1E1nXhGBwRRg==, figureFileBig=hgZits9CJT1jcbgkNiOCiQ==, tableContent=null), ArticleFig(id=1319293143653143205, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=EN, label=Tab.1, caption=
Numerical simulation parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
|---|
| 滑阀入口压力/MPa | 1.0 |
| 滑阀出口压力/MPa | 0 |
| 液压油密度/(kg·m-3) | 860 |
| 液压油黏度/(Pa·s) | 0.025 |
), ArticleFig(id=1319293143724446374, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293129300234818, language=CN, label=表1, caption=
数值仿真参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
|---|
| 滑阀入口压力/MPa | 1.0 |
| 滑阀出口压力/MPa | 0 |
| 液压油密度/(kg·m-3) | 860 |
| 液压油黏度/(Pa·s) | 0.025 |
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