IMECH-IR  > 流固耦合系统力学重点实验室
Numerical study of the pressure wave-induced shedding mechanism in the cavitating flow around an axisymmetric projectile via a compressible multiphase solver
Ye, Bingsheng1,2; Wang, Yiwei1,2; Huang, Chenguang1,2; Huang, Jian2
Corresponding AuthorWang, Yiwei(wangyw@imech.ac.cn)
Source PublicationOCEAN ENGINEERING
2019-09-01
Volume187Pages:9
ISSN0029-8018
AbstractThe periodic shedding of cloud cavitation has been previously assumed to be induced primarily by re-entrant jet based on considerable experimental and numerical studies. However, different shedding mechanisms, including that induced by pressure waves, have recently regained research interest. To conduct a corresponding numerical investigation, the cavitating flow around an axisymmetric projectile is studied using a user-designed solver that considers the compressibility of the three phases and phase change within the OpenFOAM (R) framework. Results are compared with those of an experimental study based on Split Hopkinson Pressure Bar (SHPB) technology with high-speed photography. Good agreement on cavity morphology is confirmed between the results. During the first period, a typical re-entrant jet-induced shedding mechanism is observed as the re-entrant jet front coincides with cavity closure. By contrast, their evident separation is noted in the second period, and cavity closure is located in a counterflow area caused by the impact of pressure waves that are radiated by the collapse of a shedding cavity and propagate in liquid water. This observation is never predicted by an incompressible solver used for comparison, thereby indicating that the existence of a different shedding mechanism is highly relevant to compressibility.
KeywordCavitation Compressibility Shedding mechanism OpenFOAM (R)
DOI10.1016/j.oceaneng.2019.106179
Indexed BySCI
Language英语
WOS IDWOS:000487564700064
WOS KeywordSHOCK-WAVES ; SIMULATION ; DYNAMICS ; LIQUID
WOS Research AreaEngineering ; Oceanography
WOS SubjectEngineering, Marine ; Engineering, Civil ; Engineering, Ocean ; Oceanography
Funding ProjectNational Natural Science Foundation of China[11772340] ; National Natural Science Foundation of China[11672315] ; Youth Innovation Promotion Association CAS[2015015]
Funding OrganizationNational Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
ContributorWang, Yiwei
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80457
Collection流固耦合系统力学重点实验室
Corresponding AuthorWang, Yiwei
Affiliation1.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Ye, Bingsheng,Wang, Yiwei,Huang, Chenguang,et al. Numerical study of the pressure wave-induced shedding mechanism in the cavitating flow around an axisymmetric projectile via a compressible multiphase solver[J]. OCEAN ENGINEERING,2019,187:9.
APA Ye, Bingsheng,Wang, Yiwei,Huang, Chenguang,&Huang, Jian.(2019).Numerical study of the pressure wave-induced shedding mechanism in the cavitating flow around an axisymmetric projectile via a compressible multiphase solver.OCEAN ENGINEERING,187,9.
MLA Ye, Bingsheng,et al."Numerical study of the pressure wave-induced shedding mechanism in the cavitating flow around an axisymmetric projectile via a compressible multiphase solver".OCEAN ENGINEERING 187(2019):9.
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