Article(id=1243253929325216388, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243253924128469739, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2025.07.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1737648000000, receivedDateStr=2025-01-24, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774344435291, onlineDateStr=2026-03-24, pubDate=1752940800000, pubDateStr=2025-07-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774344435291, onlineIssueDateStr=2026-03-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774344435291, creator=13701087609, updateTime=1774344435291, updator=13701087609, issue=Issue{id=1243253924128469739, tenantId=1146029695717560320, journalId=1240685776644648972, year='2025', volume='29', issue='7', pageStart='1013', pageEnd='1180', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774344434053, creator=13701087609, updateTime=1774501521460, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1243912796535107926, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243253924128469739, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1243912796535107927, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243253924128469739, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1013, endPage=1022, ext={EN=ArticleExt(id=1243253929576874639, articleId=1243253929325216388, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Research on the tip clearance flow and hydrodynamic performance of pump-jet propulsor with large tip clearance, columnId=1241023037940748650, journalTitle=Journal of Ship Mechanics, columnName=Hydrodynamics, runingTitle=null, highlight=null, articleAbstract=
Tip clearance flow is a complex phenomenon that occurs between the rotor blade tip and the inner surface of the duct of a pump-jet propulsor. The tip clearance size significantly influences both the tip clearance flow and the performance of the pump-jet propulsor. Previous studies on tip clearance flow primarily focused on cases with tip clearance sizes less than 4 mm on model scale. Tip clearance flow of pump-jet propulsors with tip clearance sizes of 1 mm and 16 mm were simulated based on large eddy simulation in this paper. The study focuses on the characteristics of tip clearance flow in the large tip clearance pump-jet propulsor and the effects on cavitation inception, hydrodynamic performance, and duct pressure fluctuation. The results indicate that, compared to smaller tip clearance, the starting position of tip-separation vortex of pump-jet propulsor with large tip clearance is closer to the leading edge of rotor, while the intersection position of tip-separation vortex and tip-leakage vortex is closer to the trailing edge of rotor. Furthermore, the propulsion efficiency of the pump-jet propulsor behind SUBOFF is reduced by approximately 10%. The vorticity and circulation of tip-leakage vortex are larger, and cavitation inception of tip-leakage vortex occurs earlier. The amplitude of fluctuating pressure on duct inner surface is significantly decreased by about 80%. Therefore, the design of the pump-jet propulsor should be made based on comprehensive balance of the above-mentioned performance characteristics to find the optimal tip clearance size.
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梢隙流动是存在于泵喷推进器转子叶梢与导管内壁之间的复杂流动,叶梢间隙尺寸对梢隙流动及泵喷推进器性能有显著影响,以往针对梢隙流动的研究,其模型尺度下的间隙尺寸大多都小于4 mm。本文基于大涡模拟方法对间隙大小为1 mm和16 mm的泵喷推进器梢隙流动进行了数值模拟,重点分析了大间隙泵喷推进器梢隙流动的特征,及其对空泡起始性能、水动力性能以及导管脉动压力的影响。结果表明:与小间隙相比,大间隙泵喷推进器梢部分离涡的产生位置更靠近转子叶片的导边,梢部的分离涡与梢泄涡交汇位置更靠近转子叶片的随边;艇后泵喷推进器效率下降明显,降低了约10%;梢泄涡涡量与环量更大,梢泄涡空泡起始更早;导管脉动压力显著降低,约为小间隙的20%。因此,泵喷推进器的设计应该综合权衡考虑以上性能,寻求最佳的间隙大小。
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2019. (in Chinese), articleTitle=Study on unsteady forces of a pump-jet in non-uniform wake field, refAbstract=null)], funds=[Fund(id=1243253945452315037, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, awardId=2022YFB3404800, language=CN, fundingSource=深远海船舶6000 kW级全回转推进器抗疲劳设计制造关键技术与装备(2022YFB3404800), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1243253938930171981, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, xref=null, ext=[AuthorCompanyExt(id=1243253938938560591, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, companyId=1243253938930171981, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=China Ship Scientific Research Center, Wuxi 214082, China), AuthorCompanyExt(id=1243253938946949201, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, companyId=1243253938930171981, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中国船舶科学研究中心,江苏 无锡 214082)])], figs=[ArticleFig(id=1243253940603699382, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.1, caption=
Computational domain of ducted propeller, figureFileSmall=3rvQSgbbhYzWrARFEQfS/A==, figureFileBig=tbrrdlzT4nL0hPVn/gFDqA==, tableContent=null), ArticleFig(id=1243253940658225339, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图1, caption=
导管桨计算域, figureFileSmall=3rvQSgbbhYzWrARFEQfS/A==, figureFileBig=tbrrdlzT4nL0hPVn/gFDqA==, tableContent=null), ArticleFig(id=1243253940876329159, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.2, caption=
Mesh refinement region of ducted propeller, figureFileSmall=N6iTwFK6v4prWetdEpBlbg==, figureFileBig=SccCTG5aVMVcHSe6QBne9w==, tableContent=null), ArticleFig(id=1243253940956020940, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图2, caption=
导管桨网格加密区, figureFileSmall=N6iTwFK6v4prWetdEpBlbg==, figureFileBig=SccCTG5aVMVcHSe6QBne9w==, tableContent=null), ArticleFig(id=1243253941035712725, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.3, caption=
Number of meshs around the vortex core, figureFileSmall=0Efy4dQ0Rm1WFlFy+OqI1Q==, figureFileBig=q9x0zhol/H1AZLSVzqAchA==, tableContent=null), ArticleFig(id=1243253941127987413, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图3, caption=
涡核区域网格数, figureFileSmall=0Efy4dQ0Rm1WFlFy+OqI1Q==, figureFileBig=q9x0zhol/H1AZLSVzqAchA==, tableContent=null), ArticleFig(id=1243253941232845016, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.4, caption=
Open water performance of ducted propeller, figureFileSmall=2Xghw5MyJ1fbX/5fBPe7fg==, figureFileBig=LGBNnINuxP4MOZ7uE+0fsg==, tableContent=null), ArticleFig(id=1243253941341896925, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图4, caption=
导管桨水动力性能计算和试验结果, figureFileSmall=2Xghw5MyJ1fbX/5fBPe7fg==, figureFileBig=LGBNnINuxP4MOZ7uE+0fsg==, tableContent=null), ArticleFig(id=1243253941438365919, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.5, caption=
Model of pump-jet propulsor, figureFileSmall=l/9a4aPTZmwSU7I31PrWjg==, figureFileBig=EasV08iCeC3ZzXFIdYM6Vg==, tableContent=null), ArticleFig(id=1243253941509669092, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图5, caption=
泵喷推进器模型, figureFileSmall=l/9a4aPTZmwSU7I31PrWjg==, figureFileBig=EasV08iCeC3ZzXFIdYM6Vg==, tableContent=null), ArticleFig(id=1243253941669052651, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.6, caption=
SUBOFF submarine model with large tip clearance pump-jet, figureFileSmall=RFs9+QzCv+pzOmw88Yr8Pw==, figureFileBig=y1fRD0C2KWCffFPQB7tEbA==, tableContent=null), ArticleFig(id=1243253941807464687, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图6, caption=
带大间隙泵喷推进器的SUBOFF潜艇模型, figureFileSmall=RFs9+QzCv+pzOmw88Yr8Pw==, figureFileBig=y1fRD0C2KWCffFPQB7tEbA==, tableContent=null), ArticleFig(id=1243253941891350772, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.7, caption=
Computational domain of SUBOFF submarine model with pump-jet propulsor behind, figureFileSmall=njJzwF8AQSOzBwLDEFRfKg==, figureFileBig=S33g5gkiafIhiJKqWXVf+w==, tableContent=null), ArticleFig(id=1243253942000402679, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图7, caption=
SUBOFF潜艇模型的泵喷推进器计算域, figureFileSmall=njJzwF8AQSOzBwLDEFRfKg==, figureFileBig=S33g5gkiafIhiJKqWXVf+w==, tableContent=null), ArticleFig(id=1243253942210117886, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.8, caption=
Mesh of pump-jet propulsor, figureFileSmall=bofCq3CHtz+WnL9BKBE5Bw==, figureFileBig=PPLmiIgkfSUA5t4AB4yomA==, tableContent=null), ArticleFig(id=1243253942314975488, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图8, caption=
泵喷推进器网格, figureFileSmall=bofCq3CHtz+WnL9BKBE5Bw==, figureFileBig=PPLmiIgkfSUA5t4AB4yomA==, tableContent=null), ArticleFig(id=1243253942407250183, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.9, caption=
Mesh around SUBOFF submarine model, figureFileSmall=TBA3WAi7iUhGqYPqT1zIyg==, figureFileBig=CbjNrRtzi7Y04LBAxnMnLQ==, tableContent=null), ArticleFig(id=1243253942503719181, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图9, caption=
SUBOFF潜艇模型周围网格, figureFileSmall=TBA3WAi7iUhGqYPqT1zIyg==, figureFileBig=CbjNrRtzi7Y04LBAxnMnLQ==, tableContent=null), ArticleFig(id=1243253942575022355, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.10, caption=
Vortex structure of flow in tip clearance region, figureFileSmall=gnJXHiPIwijU/1A2UYtfYA==, figureFileBig=FUWzyZf/H28p/T3iDqopOA==, tableContent=null), ArticleFig(id=1243253942650519834, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图10, caption=
梢隙流动涡结构, figureFileSmall=gnJXHiPIwijU/1A2UYtfYA==, figureFileBig=FUWzyZf/H28p/T3iDqopOA==, tableContent=null), ArticleFig(id=1243253942755377437, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.11, caption=
Streamline of tip-clearance flow, figureFileSmall=/MuIeGDCyuE+JnfMhbV/tQ==, figureFileBig=t+OYan92riPo3WzS+bs1bg==, tableContent=null), ArticleFig(id=1243253942856040737, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图11, caption=
梢隙流动流线图, figureFileSmall=/MuIeGDCyuE+JnfMhbV/tQ==, figureFileBig=t+OYan92riPo3WzS+bs1bg==, tableContent=null), ArticleFig(id=1243253942952509735, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.12, caption=
Shape of tip-leakage vortex, figureFileSmall=ILK4Rl9IIHg3U7j3utzhJA==, figureFileBig=JRxd8mJ6gm8tCTU1rxijhQ==, tableContent=null), ArticleFig(id=1243253943048978732, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图12, caption=
梢泄涡形态, figureFileSmall=ILK4Rl9IIHg3U7j3utzhJA==, figureFileBig=JRxd8mJ6gm8tCTU1rxijhQ==, tableContent=null), ArticleFig(id=1243253943107698991, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.13, caption=
Size of tip-leakage vortex, figureFileSmall=pmb3OIyEIb1OkFN8Jkmrcg==, figureFileBig=E8YCdAOhuxYXyJF24mY5qQ==, tableContent=null), ArticleFig(id=1243253943183196468, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图13, caption=
梢泄涡的尺寸, figureFileSmall=pmb3OIyEIb1OkFN8Jkmrcg==, figureFileBig=E8YCdAOhuxYXyJF24mY5qQ==, tableContent=null), ArticleFig(id=1243253943267082554, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.14, caption=
Radial position of tip-leakage vortex core, figureFileSmall=Utxl9wTGETRFbtvSeQZCGQ==, figureFileBig=FA9lv8n6AeMC7Onng2V8ww==, tableContent=null), ArticleFig(id=1243253943355162943, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图14, caption=
梢泄涡涡心径向位置, figureFileSmall=Utxl9wTGETRFbtvSeQZCGQ==, figureFileBig=FA9lv8n6AeMC7Onng2V8ww==, tableContent=null), ArticleFig(id=1243253943472603461, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.15, caption=
Pressure at tip-leakage vortex core, figureFileSmall=X64tMk3SA/3JjcO3YrEmYg==, figureFileBig=Uz9qZg0ahEuvs+1mBGeXvA==, tableContent=null), ArticleFig(id=1243253943606821196, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图15, caption=
梢泄涡涡心压力, figureFileSmall=X64tMk3SA/3JjcO3YrEmYg==, figureFileBig=Uz9qZg0ahEuvs+1mBGeXvA==, tableContent=null), ArticleFig(id=1243253943707484500, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.16, caption=
Position of tip-leakage vortex cavitation inception, figureFileSmall=1YNwdkKfEsTY+UWXSH+pbg==, figureFileBig=A5ASMwlrKOKLg4jhNv7jWQ==, tableContent=null), ArticleFig(id=1243253943820730713, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图16, caption=
梢泄涡空泡起始位置, figureFileSmall=1YNwdkKfEsTY+UWXSH+pbg==, figureFileBig=A5ASMwlrKOKLg4jhNv7jWQ==, tableContent=null), ArticleFig(id=1243253943950754142, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.17, caption=
Pressure distribution on the inner/outer walls of the duct, figureFileSmall=aPheln3PHyz92Us/p0RB5w==, figureFileBig=FXrLm6PGisLG1jehLO+EuQ==, tableContent=null), ArticleFig(id=1243253944038834530, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图17, caption=
导管内外壁压力分布, figureFileSmall=aPheln3PHyz92Us/p0RB5w==, figureFileBig=FXrLm6PGisLG1jehLO+EuQ==, tableContent=null), ArticleFig(id=1243253944131109223, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.18, caption=
Monitoring points of duct pressure fluctuation, figureFileSmall=QfRe9Tl2bPRgadOQpjX65A==, figureFileBig=JNcTmzTC37UdWssawENq0A==, tableContent=null), ArticleFig(id=1243253944231772525, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图18, caption=
导管脉动压力监测点, figureFileSmall=QfRe9Tl2bPRgadOQpjX65A==, figureFileBig=JNcTmzTC37UdWssawENq0A==, tableContent=null), ArticleFig(id=1243253944353407345, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.19, caption=
Time domain diagram of duct pressure fluctuation, figureFileSmall=0NZ2xeJfF7ZI0uAgB8oTQA==, figureFileBig=dTa56wBH8iW1w3Eeswy0dg==, tableContent=null), ArticleFig(id=1243253944449876341, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图19, caption=
导管脉动压力时域图, figureFileSmall=0NZ2xeJfF7ZI0uAgB8oTQA==, figureFileBig=dTa56wBH8iW1w3Eeswy0dg==, tableContent=null), ArticleFig(id=1243253944533762427, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Fig.20, caption=
Fluctuating pressure amplitude for first-order blade frequency, figureFileSmall=DkV1ain64kPWzY4eb7xncQ==, figureFileBig=/qmJCky3a/qgZPyW3kfQ8g==, tableContent=null), ArticleFig(id=1243253944651202940, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=图20, caption=
一阶叶频脉动压力幅值, figureFileSmall=DkV1ain64kPWzY4eb7xncQ==, figureFileBig=/qmJCky3a/qgZPyW3kfQ8g==, tableContent=null), ArticleFig(id=1243253944760254849, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Tab.1, caption=
Size and number of different grid sets
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| 网格方案 | 加密区网格尺寸/mm | 网格数目/万 |
|---|
| 静止域 | 旋转域 | 计算域 |
|---|
| Grid 1 | 0.6 | 392 | 196 | 588 |
| Grid 2 | 0.5 | 351 | 743 |
| Grid 3 | 0.4 | 604 | 996 |
| Grid 4 | 0.3 | 962 | 1354 |
), ArticleFig(id=1243253944852529541, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=表1, caption=
网格尺寸及网格数
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| 网格方案 | 加密区网格尺寸/mm | 网格数目/万 |
|---|
| 静止域 | 旋转域 | 计算域 |
|---|
| Grid 1 | 0.6 | 392 | 196 | 588 |
| Grid 2 | 0.5 | 351 | 743 |
| Grid 3 | 0.4 | 604 | 996 |
| Grid 4 | 0.3 | 962 | 1354 |
), ArticleFig(id=1243253944923832713, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Tab.2, caption=
Calculation results with each grid set
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| 网格方案 | KT | 10KQ | KTD | CP |
|---|
| Grid 1 | 0.2462 | — | 0.3726 | — | 0.0941 | — | -11.54 | — |
| Grid 2 | 0.2221 | -9.79% | 0.3653 | -2.00% | 0.0939 | -0.22% | -12.70 | 10.05% |
| Grid 3 | 0.2191 | -1.35% | 0.3602 | -1.39% | 0.0937 | -0.21% | -13.89 | 9.37% |
| Grid 4 | 0.2207 | 0.73% | 0.3615 | 0.36% | 0.0937 | 0.00% | -14.00 | 0.79% |
), ArticleFig(id=1243253945028690318, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=表2, caption=
各套网格的计算结果
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| 网格方案 | KT | 10KQ | KTD | CP |
|---|
| Grid 1 | 0.2462 | — | 0.3726 | — | 0.0941 | — | -11.54 | — |
| Grid 2 | 0.2221 | -9.79% | 0.3653 | -2.00% | 0.0939 | -0.22% | -12.70 | 10.05% |
| Grid 3 | 0.2191 | -1.35% | 0.3602 | -1.39% | 0.0937 | -0.21% | -13.89 | 9.37% |
| Grid 4 | 0.2207 | 0.73% | 0.3615 | 0.36% | 0.0937 | 0.00% | -14.00 | 0.79% |
), ArticleFig(id=1243253945112576401, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Tab.3, caption=
Vorticity magnitude/circulation/size of tip leakage vortex
, figureFileSmall=null, figureFileBig=null, tableContent=
| δ/mm | ω/s-1 | Γ/(m2·s-1) | 梢泄涡尺寸/mm |
|---|
| 1 | 4363 | 0.0147 | 2.38 |
| 16 | 6984 | 0.0273 | 4.22 |
), ArticleFig(id=1243253945204851093, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=表3, caption=
梢泄涡涡量/环量/尺寸
, figureFileSmall=null, figureFileBig=null, tableContent=
| δ/mm | ω/s-1 | Γ/(m2·s-1) | 梢泄涡尺寸/mm |
|---|
| 1 | 4363 | 0.0147 | 2.38 |
| 16 | 6984 | 0.0273 | 4.22 |
), ArticleFig(id=1243253945284542869, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=EN, label=Tab.4, caption=
Hydrodynamic performance at self-propulsion point
, figureFileSmall=null, figureFileBig=null, tableContent=
| δ/mm | n/(r·s-1) | KTR | KTS | KTD | 10KQ | ηT |
|---|
| 1 | 18.05 | 0.3663 | -0.0270 | 0.0167 | 0.7437 | 84.45% |
| 16 | 18.40 | 0.3931 | -0.0229 | -0.0422 | 0.7612 | 74.57% |
), ArticleFig(id=1243253945351651737, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243253929325216388, language=CN, label=表4, caption=
自航点水动力性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| δ/mm | n/(r·s-1) | KTR | KTS | KTD | 10KQ | ηT |
|---|
| 1 | 18.05 | 0.3663 | -0.0270 | 0.0167 | 0.7437 | 84.45% |
| 16 | 18.40 | 0.3931 | -0.0229 | -0.0422 | 0.7612 | 74.57% |
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