Passive control of cavitating flow around an axisymmetric projectile by using a trip bar

Passive control of cavitating flow around an axisymmetric projectile by using a trip bar

Quasi-periodical evolutions such as shedding and collapsing of unsteady cloud cavitating flow, induce strong pressure fluctuations, what may deteriorate maneuvering stability and corrode surfaces of underwater vehicles. This paper analyzed effects on cavitation stability of a trip bar arranged on hi...

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Main Authors: Jian Huang, Chao Yu, Yiwei Wang, Chang Xu, Chenguang Huang
Format: Article
Language:English
Published: Elsevier 2017-07-01
Series:Theoretical and Applied Mechanics Letters
Online Access:http://www.sciencedirect.com/science/article/pii/S2095034917300983
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spelling doaj-84e5d3bc76a44f39b728c5387295600f2020-11-24T21:03:10ZengElsevierTheoretical and Applied Mechanics Letters2095-03492017-07-0174181184Passive control of cavitating flow around an axisymmetric projectile by using a trip barJian Huang0Chao Yu1Yiwei Wang2Chang Xu3Chenguang Huang4Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; School of Engineering Science, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100049, ChinaKey Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; School of Engineering Science, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100049, China; Corresponding author at: Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, ChinaKey Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China; School of Engineering Science, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100049, ChinaQuasi-periodical evolutions such as shedding and collapsing of unsteady cloud cavitating flow, induce strong pressure fluctuations, what may deteriorate maneuvering stability and corrode surfaces of underwater vehicles. This paper analyzed effects on cavitation stability of a trip bar arranged on high-speed underwater projectile. Small scale water tank experiment and large eddy simulation using the open source software OpenFOAM were used, and the results agree well with each other. Results also indicate that trip bar can obstruct downstream re-entrant jet and pressure wave propagation caused by collapse, resulting in a relatively stable sheet cavity between trip bar and shoulder of projectiles. Keywords: Unsteady cavitating flow, Trip bar, Re-entrant jet, Passive flow controlhttp://www.sciencedirect.com/science/article/pii/S2095034917300983
collection DOAJ
language English
format Article
sources DOAJ
author Jian Huang
Chao Yu
Yiwei Wang
Chang Xu
Chenguang Huang
spellingShingle Jian Huang
Chao Yu
Yiwei Wang
Chang Xu
Chenguang Huang
Passive control of cavitating flow around an axisymmetric projectile by using a trip bar
Theoretical and Applied Mechanics Letters
author_facet Jian Huang
Chao Yu
Yiwei Wang
Chang Xu
Chenguang Huang
author_sort Jian Huang
title Passive control of cavitating flow around an axisymmetric projectile by using a trip bar
title_short Passive control of cavitating flow around an axisymmetric projectile by using a trip bar
title_full Passive control of cavitating flow around an axisymmetric projectile by using a trip bar
title_fullStr Passive control of cavitating flow around an axisymmetric projectile by using a trip bar
title_full_unstemmed Passive control of cavitating flow around an axisymmetric projectile by using a trip bar
title_sort passive control of cavitating flow around an axisymmetric projectile by using a trip bar
publisher Elsevier
series Theoretical and Applied Mechanics Letters
issn 2095-0349
publishDate 2017-07-01
description Quasi-periodical evolutions such as shedding and collapsing of unsteady cloud cavitating flow, induce strong pressure fluctuations, what may deteriorate maneuvering stability and corrode surfaces of underwater vehicles. This paper analyzed effects on cavitation stability of a trip bar arranged on high-speed underwater projectile. Small scale water tank experiment and large eddy simulation using the open source software OpenFOAM were used, and the results agree well with each other. Results also indicate that trip bar can obstruct downstream re-entrant jet and pressure wave propagation caused by collapse, resulting in a relatively stable sheet cavity between trip bar and shoulder of projectiles. Keywords: Unsteady cavitating flow, Trip bar, Re-entrant jet, Passive flow control
url http://www.sciencedirect.com/science/article/pii/S2095034917300983
work_keys_str_mv AT jianhuang passivecontrolofcavitatingflowaroundanaxisymmetricprojectilebyusingatripbar
AT chaoyu passivecontrolofcavitatingflowaroundanaxisymmetricprojectilebyusingatripbar
AT yiweiwang passivecontrolofcavitatingflowaroundanaxisymmetricprojectilebyusingatripbar
AT changxu passivecontrolofcavitatingflowaroundanaxisymmetricprojectilebyusingatripbar
AT chenguanghuang passivecontrolofcavitatingflowaroundanaxisymmetricprojectilebyusingatripbar
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