Frequency characteristics of liquid hydrogen cavitating flow over a NACA0015 hydrofoil

Frequency characteristics of liquid hydrogen cavitating flow over a NACA0015 hydrofoil

•Unsteady LH2 cavitation over an 3D hydrofoil is modeled based on LES.•Frequency characteristics of LH2 cavitation cloud are specially analyzed.•Strouhal number is much lower than water at σ/2α > 2, while same at σ/2α 

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Veröffentlicht in:Cryogenics (Guildford) 2018-03, Vol.90, p.7-19
Hauptverfasser: Zhu, Jiakai, Wang, Shunhao, Qiu, Limin, Zhi, Xiaoqin, Zhang, Xiaobin
Format: Artikel
Sprache:eng
Schlagworte:
Cavitation
Cavitation flow
Cavitation number
Compressibility
Computational fluid dynamics
Computer simulation
Cryogenic fluids
Fluid flow
Frequency
Heat conductivity
Hydrofoil
Hydrofoils
Hydrogen
Large eddy simulation
Liquid hydrogen
Low temperature physics
Mathematical models
Strouhal number
Temperature effects
Thermal effects
Vapor phases
Vortices
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Beschreibung
Zusammenfassung:•Unsteady LH2 cavitation over an 3D hydrofoil is modeled based on LES.•Frequency characteristics of LH2 cavitation cloud are specially analyzed.•Strouhal number is much lower than water at σ/2α > 2, while same at σ/2α 
ISSN:0011-2275
1879-2235
DOI:10.1016/j.cryogenics.2017.12.007