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TECHNICAL PAPERS

Numerical Study of Cavitation in Cryogenic Fluids

[+] Author and Article Information
Ashvin Hosangadi, Vineet Ahuja

Combustion Research and Flow Technology, Inc., Pipersville, PA 18947

J. Fluids Eng 127(2), 267-281 (May 10, 2005) (15 pages) doi:10.1115/1.1883238 History: Received January 20, 2004; Revised August 15, 2004; Online May 10, 2005
Copyright © 2005 by ASME
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References

Figures

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Typical pressure and temperature depression within cavitated region for Freon-119 in a Venturi [Taken from 16]
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Saturation properties of nitrogen as a function of temperature: (a) liquid nitrogen density; (b) vapor density; (c) vapor pressure
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Sensitivity of vapor volume fraction in liquid nitrogen cavity to heat of vaporization: (U=20 m/s,T=89 K,Kc=0.2)—(a) isothermal cavitation; (b) heat of vaporization=0.1*hfg; (c) cryogenic cavitation
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Temperature variations in liquid nitrogen cavity (U=20 m/s,T=89 K,Kc=0.2)
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Pressure coefficient on head-form surface as a function of heat of vaporization (U=20 m/s,T=89 K,Kc=0.2) heat of vaporization factor: (a)=0;(b)=0.1;(c)=1.0
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Heat transfer model for dynamic variants of B-factor theory—[Figure taken from Report by Hord 1]
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Fluid streamlines and their interaction with the cavity for (a) isothermal cavity and (b) cryogenic cavity
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Details of tunnel geometry and hydrofoil used by Hord (Ref. 1) [Figure taken from Hord’s report]: (a) tunnel geometry; (b) quarter caliber hydrofoil with a tapered diffuser
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Pressure coefficient for noncavitating flow over hydrofoil
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Cavitating flowfield in liquid nitrogen for hydrofoil geometry: (a) flow visualization taken from Hord (Ref. 1); (b) computed vapor volume fraction; (c) computed pressure field; (d) computed temperature field
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Computed pressure and temperature depression in liquid nitrogen compared with experimental data of Hord (Ref. 1) (U=23.9 m/s,T=83.06 K,Kc=1.70)
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Sensitivity of pressure and temperature depression to vaporization and condensation rates
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Comparison of pressure and temperature depressions in liquid nitrogen as a function of freestream pressure and temperature conditions at similar freestream velocities. (Conditions given in Table I.)
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Sensitivity of pressure and temperature depression in liquid nitrogen to changes in freestream velocity
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Pressure coefficient and temperature distribution on headform as a function of freestream velocity; (a) U=20 m/s, (b) U=25 m/s, (c) U=30 m/s
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Saturation properties of liquid hydrogen as a function of temperature
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Pressure and temperature depression in liquid hydrogen cavities for different freestream conditions. Conditions given in Table II.

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