Numerical investigation and experimental observation of unsteady tip leakage cavitating flow for the axial waterjet pump

被引：4

作者：

Xu, Shun ^{[1
]}

Long, Xin-ping ^{[2
]}

Ji, Bin ^{[2
]}

Li, Gui-bin ^{[3
,4
]}

Xiong, Yong-liang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Aerosp Engn, Wuhan 430074, Peoples R China

[2] Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan, Peoples R China

[3] Sci & Technol Water Jet Prop Lab, Shanghai, Peoples R China

[4] Marine Design & Res Inst China, Shanghai, Peoples R China

来源：

SHIPS AND OFFSHORE STRUCTURES | 2023年 / 18卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Tip leakage vortex cavitation; numerical simulation; vorticity transport; axial waterjet pump; LARGE-EDDY SIMULATION; VORTEX CAVITATION; TURBULENCE;

D O I：

10.1080/17445302.2022.2093505

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

In this paper, experimental observation and numerical calculation are applied to investigate the vortex-cavitation interactionin the blade tip region. Calculated performances have good agreement with experimental results. The evolution of TLVC is analysed byHigh-speed photography (HSP) at the selected cavitation condition. Liutex method was adopted to identify the tip leakage vortex (TLV)core centre. According to the radial location of the TLV core centre and the development of TLVC, the flow along the blade can bedivided into three regimes: stable cavitation, unstable cavitation and non-cavitation flow. Tip leakage flow (TLF) and main flow haveeffects on the TLV intensity and trajectory. Finally, different terms of vorticity transport equation were used to analyse the contributionof cavitation to the production and reallocation of vorticity in a rotating frame. It shows that circumferential dilatation and axial vortexstretching terms mainly contribute to vorticity production and its relocation.

引用

页码：980 / 991

页数：12

共 25 条

[1]

Barth T., 1989, 27 AER SCI M, P366, DOI DOI 10.2514/6.1989-366

[2] Large eddy simulation of the tip-leakage cavitating flow with an insight on how cavitation influences vorticity and turbulence [J].

Cheng, H. Y. ;

Bai, X. R. ;

Long, X. P. ;

Ji, B. ;

Peng, X. X. ;

Farhat, M. .

APPLIED MATHEMATICAL MODELLING, 2020, 77 :788-809

[3] A CORRELATION OF LEAKAGE VORTEX CAVITATION IN AXIAL-FLOW PUMPS [J].

FARRELL, KJ ;

BILLET, ML .

JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME, 1994, 116 (03) :551-557

[4] Rortex and comparison with eigenvalue-based vortex identification criteria [J].

Gao, Yisheng ;

Liu, Chaoqun .

PHYSICS OF FLUIDS, 2018, 30 (08)

[5] A numerical modelling of stator-rotor interaction in a turbine stage with oscillating blades [J].

Gnesin, VI ;

Kolodyazhnaya, LV ;

Rzadkowski, R .

JOURNAL OF FLUIDS AND STRUCTURES, 2004, 19 (08) :1141-1153

[6] Numerical investigation of the blade tip leakage vortex cavitation in a waterjet pump [J].

Guo, Qiang ;

Huang, Xianbei ;

Qiu, Baoyun .

OCEAN ENGINEERING, 2019, 187

[7] Numerical simulation for the tip leakage vortex cavitation [J].

Guo, Qiang ;

Zhou, Lingjiu ;

Wang, Zhengwei ;

Liu, Meng ;

Cheng, Huan .

OCEAN ENGINEERING, 2018, 151 :71-81

[8]

Higuchi H., 1989, Transactions of the ASME. Journal of Fluids Engineering, V111, P495, DOI 10.1115/1.3243674

[9] Numerical roll damping prediction of a planing hull [J].

Kahramanoglu, Emre ;

Yildiz, Burak ;

Cakici, Ferdi ;

Yilmaz, Huseyin .

SHIPS AND OFFSHORE STRUCTURES, 2021, 16 (04) :363-372

[10] A comparison of two ship performance models against full-scale measurements on a cargo ship on the Northern Sea Route [J].

Li, Zhiyuan ;

Ryan, Christopher ;

Huang, Luofeng ;

Ding, Li ;

Ringsberg, Jonas W. ;

Thomas, Giles .

SHIPS AND OFFSHORE STRUCTURES, 2021, 16 (16) :237-244

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