Article(id=1319293652116025439, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293542573392487, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.07.008, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1735833600000, receivedDateStr=2025-01-03, revisedDate=1745769600000, revisedDateStr=2025-04-28, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473717955, onlineDateStr=2026-10-20, pubDate=1753804800000, pubDateStr=2025-07-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473717955, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473717955, creator=13701087609, updateTime=1792473717955, updator=13701087609, issue=Issue{id=1319293542573392487, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='7', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1753804800000', pubDateStr='2025-07-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473691838, creator='13701087609', updateTime=1792473691838, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=53, endPage=60, ext={EN=ArticleExt(id=1319293653584031840, articleId=1319293652116025439, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Study on the thrust coupling characteristics of unsteady parallel jets, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
In order to study the thrust coupling characteristics of unsteady parallel jet flows,a numerical simulation model was established to investigate the effects of jet velocity function,central axis distance,and time phase difference on the thrust coupling characteristics.The model was verified using experimental data.The results show that when the central axis distance is 1.5D (where D is the nozzle diameter),the average thrust ratio K between the dual‑nozzle and single‑nozzle jets increases with the increase in time phase difference within one jet cycle,with a maximum thrust loss of 8.53%.At larger time phase differences,K>1 occurs,indicating that the coupled thrust exhibits an enhancement effect.However,the maximum thrust enhancement is only 0.42%,suggesting that the thrust enhancement effect generated solely by the mutual induction between vortex rings is very weak.For central axis distances of 2.5D and 2.0D,the average thrust ratio K ranges from 0.994 5 to 0.997 3 and from 0.986 6 to 0.997 5,respectively,and both exhibit a trend of first decreasing and then increasing as the time phase difference increases.The research findings can provide a reference for the design of underwater unsteady propulsors.In particular,the new insights into thrust enhancement offer new ideas for the development of high‑efficiency underwater propulsors.
, authors=Xiaofeng HE, Hewen HUANG, Junyu LIU, authorsList=Xiaofeng HE, Hewen HUANG, Junyu LIU, authorCompany=null, correspAuthors=Hewen HUANG, 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=1319293658227126400, articleId=1319293652116025439, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=非稳态平行射流推力耦合特性研究, columnId=1317484287230853622, journalTitle=流体机械, columnName=设计计算, runingTitle=null, highlight=null, articleAbstract=
为了研究非稳态平行射流推力耦合特性规律,建立了数值仿真模型,考察了射流速度函数、中心轴距和时间相位差对推力耦合特性的影响,并通过试验数据对模型进行了验证。结果表明,在中心轴距为1.5D(D为喷嘴直径)下,双喷嘴与单喷嘴射流的平均推力比值K随时间相位差增大而增大(一个射流周期内),最大推力损失达到8.53%;在较大时间相位差时出现K>1,即耦合推力呈现增强效应;最大推力增强仅为0.42%,单纯依靠涡环间的相互诱导作用产生的推力增强效应很微弱;当中心轴距为2.5D和2.0D时,平均推力比值K随时间相位差增大则呈现出先减后增的规律,其范围分别为0.994 5~0.997 3和0.986 6~0.997 5。研究成果可为水下非稳态推进器的设计提供参考,尤其在推力增强方面的新发现,为水下高效推进器的设计提供新思路。
, authors=贺小峰, 黄贺文, 刘俊宇, authorsList=贺小峰, 黄贺文, 刘俊宇, authorCompany=null, correspAuthors=黄贺文, authorNote=
贺小峰(1968),男,博士,教授,主要从事水压传动基础理论及应用、水射流技术等方面的研究,通信地址:430074湖北省武汉市洪山区1037号华中科技大学液压实验室,E-mail:hexiaofeng@hust.edu.cn。
, correspAuthorsNote=
黄贺文(1999),男,硕士研究生,主要从事非稳态水射流方面的研究,通信地址:430074湖北省武汉市洪山区1037号华中科技大学液压实验室,E-mail:
13949959468@163.com。
, 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=x70JNWJoAF5P8ODSod2aYw==, magXml=CpbdxyIVZ2HE0WdAvGWSIg==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=If+H4o9atRUAMIO9g/1N3g==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=GQ+cDOd8DPBRarFkF4lZ+A==, mapNumber=null, fund=null)}, authors=[Author(id=1319293817719739382, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=hexiaofeng@hust.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293817803625464, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, authorId=1319293817719739382, language=EN, stringName=Xiaofeng HE, firstName=Xiaofeng, middleName=null, lastName=HE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=College of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293817866540025, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, authorId=1319293817719739382, language=CN, stringName=贺小峰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=华中科技大学 机械科学与工程学院,武汉 430074, bio={"content":"
贺小峰(1968),男,博士,教授,主要从事水压传动基础理论及应用、水射流技术等方面的研究,通信地址:430074湖北省武汉市洪山区1037号华中科技大学液压实验室,E-mail:hexiaofeng@hust.edu.cn。
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贺小峰(1968),男,博士,教授,主要从事水压传动基础理论及应用、水射流技术等方面的研究,通信地址:430074湖北省武汉市洪山区1037号华中科技大学液压实验室,E-mail:hexiaofeng@hust.edu.cn。
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companyList=[AuthorCompany(id=1319293817627464690, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, xref=null, ext=[AuthorCompanyExt(id=1319293817635853299, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, companyId=1319293817627464690, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=College of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China), AuthorCompanyExt(id=1319293817644241908, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, companyId=1319293817627464690, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=华中科技大学 机械科学与工程学院,武汉 430074)])], figs=[ArticleFig(id=1319293819099664395, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.1, caption=
Simulation model, figureFileSmall=LelLvZtE527sehD1Q1UjEw==, figureFileBig=If+H4o9atRUAMIO9g/1N3g==, tableContent=null), ArticleFig(id=1319293819154190348, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图1, caption=
仿真模型, figureFileSmall=LelLvZtE527sehD1Q1UjEw==, figureFileBig=If+H4o9atRUAMIO9g/1N3g==, tableContent=null), ArticleFig(id=1319293819242270733, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.2, caption=
Grid division, figureFileSmall=TJPueUUFqM0d+vj8WeBO9Q==, figureFileBig=kgD7852ycQ7O2cA7x3yE0A==, tableContent=null), ArticleFig(id=1319293819321962511, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图2, caption=
网格划分, figureFileSmall=TJPueUUFqM0d+vj8WeBO9Q==, figureFileBig=kgD7852ycQ7O2cA7x3yE0A==, tableContent=null), ArticleFig(id=1319293819380682768, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.3, caption=
Grid‑independent results for impulse and kinetic energy, figureFileSmall=5fWg5uNGZJAgc8jPHOqrtA==, figureFileBig=2WhFbNhN4N1kh5/a9MHSzg==, tableContent=null), ArticleFig(id=1319293819435208721, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图3, caption=
冲量与动能的网格无关性结果, figureFileSmall=5fWg5uNGZJAgc8jPHOqrtA==, figureFileBig=2WhFbNhN4N1kh5/a9MHSzg==, tableContent=null), ArticleFig(id=1319293819498123282, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.4, caption=
Time‑independent results for impulse and kinetic energy, figureFileSmall=dQDkrF71A6dBE/jWWzqQDA==, figureFileBig=bHBUbeX2NWJ/ofdFNd0N7A==, tableContent=null), ArticleFig(id=1319293819561037843, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图4, caption=
冲量与动能的时间无关性结果, figureFileSmall=dQDkrF71A6dBE/jWWzqQDA==, figureFileBig=bHBUbeX2NWJ/ofdFNd0N7A==, tableContent=null), ArticleFig(id=1319293819623952404, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.5, caption=
Waveforms of different jet functions, figureFileSmall=oMptELdgUTOael8pqu9/yg==, figureFileBig=unrbmynNUdIpewzOfT/v0A==, tableContent=null), ArticleFig(id=1319293819686866965, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图5, caption=
不同的射流函数波形, figureFileSmall=oMptELdgUTOael8pqu9/yg==, figureFileBig=unrbmynNUdIpewzOfT/v0A==, tableContent=null), ArticleFig(id=1319293819745587222, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.6, caption=
The relationship between jet coupling time, figureFileSmall=nK1q6DjNc5qEbGsSUT6/qA==, figureFileBig=D+gcInOFdCrjcGJsScsQ6A==, tableContent=null), ArticleFig(id=1319293819804307479, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图6, caption=
射流耦合时间关系, figureFileSmall=nK1q6DjNc5qEbGsSUT6/qA==, figureFileBig=D+gcInOFdCrjcGJsScsQ6A==, tableContent=null), ArticleFig(id=1319293819867222040, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.7, caption=
Stained cloud maps at different centerline distances, figureFileSmall=BVKHDo1ljYfDw/orp8urpg==, figureFileBig=DGBVXjS8qaIUfhAqA4TFbQ==, tableContent=null), ArticleFig(id=1319293819921747993, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图7, caption=
不同中心轴距下的染色云图, figureFileSmall=BVKHDo1ljYfDw/orp8urpg==, figureFileBig=DGBVXjS8qaIUfhAqA4TFbQ==, tableContent=null), ArticleFig(id=1319293821557526554, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.8, caption=
Curves of the value of K varying with time phase difference under different centerline distances, figureFileSmall=rSH2HvoYf5GUi1sEi1qBdw==, figureFileBig=skdXyyQaRak4ays5IYjkzw==, tableContent=null), ArticleFig(id=1319293821628829723, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图8, caption=
不同中心轴距下K随着时间相位差变化曲线, figureFileSmall=rSH2HvoYf5GUi1sEi1qBdw==, figureFileBig=skdXyyQaRak4ays5IYjkzw==, tableContent=null), ArticleFig(id=1319293821700132892, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.9, caption=
Two position relationships of two vortex rings and their induced velocity components, figureFileSmall=45N73kHgo7sZVum/2iwhCA==, figureFileBig=CHohlTHo4OZ2brV0UE5m6g==, tableContent=null), ArticleFig(id=1319293821767241757, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图9, caption=
两涡环的2种位置关系及其诱导速度分量(a)第1种 (b)第2种
, figureFileSmall=45N73kHgo7sZVum/2iwhCA==, figureFileBig=CHohlTHo4OZ2brV0UE5m6g==, tableContent=null), ArticleFig(id=1319293821842739230, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.10, caption=
Curve of average vortex ring radius with time phase difference for different centerline distances, figureFileSmall=X3+IZOyJT6My3zHxsblglQ==, figureFileBig=YOUvHYilNjltqq0wbJJqtQ==, tableContent=null), ArticleFig(id=1319293822031482911, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图10, caption=
不同中心轴距下,后涡环的平均涡环半径随时间相位差变化曲线, figureFileSmall=X3+IZOyJT6My3zHxsblglQ==, figureFileBig=YOUvHYilNjltqq0wbJJqtQ==, tableContent=null), ArticleFig(id=1319293822094397472, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.11, caption=
Visualization of vortex rings at different time phase differences (1.5D), figureFileSmall=TSnEjfTOVEeHzS8wfFhrTg==, figureFileBig=51na4w52UdBCplADRiPcMQ==, tableContent=null), ArticleFig(id=1319293822165700641, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图11, caption=
不同时间相位差下的可视化云图(1.5D), figureFileSmall=TSnEjfTOVEeHzS8wfFhrTg==, figureFileBig=51na4w52UdBCplADRiPcMQ==, tableContent=null), ArticleFig(id=1319293822232809506, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.12, caption=
Curve for value of K varying with time phase difference (1.5D), figureFileSmall=Degl8mH2OVoikcoBo7tY4A==, figureFileBig=dzMOgEdUcVcuZbJTF1bIgw==, tableContent=null), ArticleFig(id=1319293822375415843, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图12, caption=
K随时间相位差变化曲线(1.5D), figureFileSmall=Degl8mH2OVoikcoBo7tY4A==, figureFileBig=dzMOgEdUcVcuZbJTF1bIgw==, tableContent=null), ArticleFig(id=1319293822442524708, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.13, caption=
Variation curves of the value of K with time phase difference under different jet velocity functions (2.5D), figureFileSmall=5XyKDAd1c4SEmXZhOF1ClQ==, figureFileBig=0DiU2BXOhpsILyusZMXRMw==, tableContent=null), ArticleFig(id=1319293822505439269, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图13, caption=
不同射流速度函数下K随时间相位差变化曲线(2.5D), figureFileSmall=5XyKDAd1c4SEmXZhOF1ClQ==, figureFileBig=0DiU2BXOhpsILyusZMXRMw==, tableContent=null), ArticleFig(id=1319293822597713958, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Fig.14, caption=
Variation curves of value of K with time phase difference under different jet velocity functions (1.5D), figureFileSmall=y3awTzdZCU7T9wX/t0MKGw==, figureFileBig=snzq++tbqhICgNB4iaiuAQ==, tableContent=null), ArticleFig(id=1319293822836789287, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=图14, caption=
在不同射流速度函数下K随时间相位差变化曲线(1.5D), figureFileSmall=y3awTzdZCU7T9wX/t0MKGw==, figureFileBig=snzq++tbqhICgNB4iaiuAQ==, tableContent=null), ArticleFig(id=1319293822899703848, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Tab.1, caption=
Coupled thrust normalization results for different centerline distances
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 中心轴距 |
|---|
| 1.74D | 1.94D | 2.14D |
|---|
| 仿真归一化结果 | 0.929 8 | 0.938 4 | 0.955 6 |
| 试验归一化结果 | 0.928 2 | 0.955 9 | 0.984 9 |
| 相对误差 | 0.17% | 1.83% | 2.97% |
), ArticleFig(id=1319293822991978537, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=表1, caption=
不同中心轴距下耦合推力归一化结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 中心轴距 |
|---|
| 1.74D | 1.94D | 2.14D |
|---|
| 仿真归一化结果 | 0.929 8 | 0.938 4 | 0.955 6 |
| 试验归一化结果 | 0.928 2 | 0.955 9 | 0.984 9 |
| 相对误差 | 0.17% | 1.83% | 2.97% |
), ArticleFig(id=1319293823054893098, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=EN, label=Tab.2, caption=
The values of K for each jet velocity function at different centerline distances
, figureFileSmall=null, figureFileBig=null, tableContent=
| 函数类型 | 中心轴距 |
|---|
| 1.5D | 2.0D | 2.5D |
|---|
| 正弦形函数 | 0.926 3 | 0.990 0 | 0.997 3 |
| 梯形函数 | 0.921 7 | 0.989 1 | 0.996 9 |
| 三角形函数 | 0.914 6 | 0.988 3 | 0.996 5 |
), ArticleFig(id=1319293823126196267, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293652116025439, language=CN, label=表2, caption=
不同中心轴距下各射流速度函数的K值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 函数类型 | 中心轴距 |
|---|
| 1.5D | 2.0D | 2.5D |
|---|
| 正弦形函数 | 0.926 3 | 0.990 0 | 0.997 3 |
| 梯形函数 | 0.921 7 | 0.989 1 | 0.996 9 |
| 三角形函数 | 0.914 6 | 0.988 3 | 0.996 5 |
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