The numerical analysis of the effect of flow properties on the thermodynamic effect of cavitation

Takashi Tokumasu; Yumiko Sekino; Kenjiro Kamijo

doi:10.2322/tjsass.47.146

The numerical analysis of the effect of flow properties on the thermodynamic effect of cavitation

Takashi Tokumasu, Yumiko Sekino, Kenjiro Kamijo

IFS - Nanoscale Flow Research Division

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The temperature depression of liquids due to latent heat of vaporization causes vapor pressure depression and suppresses cavity growth. This phenomenon is called "thermodynamic effect of cavitation." This effect is especially significant in cryogenic fluids such as LOX and LH₂. Due to this effect, the performance of hydraulic equipment for cryogenic fluids, such as turbqpumps of rocket engines, is not as bad as predicted. In this paper, the size of the cavity in cryogenic fluid is estimated numerically taking the thermodynamic effect of cavitation into consideration. A cavity is assumed to be a sheet cavity. From the results, the effects of the properties of liquid and Reynolds number on the thermodynamic effect of cavitation are investigated.

Original language	English
Pages (from-to)	146-152
Number of pages	7
Journal	Transactions of the Japan Society for Aeronautical and Space Sciences
Volume	47
Issue number	156
DOIs	https://doi.org/10.2322/tjsass.47.146
Publication status	Published - 2004 Aug

Keywords

Cavitation
Cryogenic Fluid
Numerical Analysis
Thermodynamic Effect of Cavitation

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10.2322/tjsass.47.146

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abstract = "The temperature depression of liquids due to latent heat of vaporization causes vapor pressure depression and suppresses cavity growth. This phenomenon is called {"}thermodynamic effect of cavitation.{"} This effect is especially significant in cryogenic fluids such as LOX and LH2. Due to this effect, the performance of hydraulic equipment for cryogenic fluids, such as turbqpumps of rocket engines, is not as bad as predicted. In this paper, the size of the cavity in cryogenic fluid is estimated numerically taking the thermodynamic effect of cavitation into consideration. A cavity is assumed to be a sheet cavity. From the results, the effects of the properties of liquid and Reynolds number on the thermodynamic effect of cavitation are investigated.",

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AU - Tokumasu, Takashi

AU - Sekino, Yumiko

AU - Kamijo, Kenjiro

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N2 - The temperature depression of liquids due to latent heat of vaporization causes vapor pressure depression and suppresses cavity growth. This phenomenon is called "thermodynamic effect of cavitation." This effect is especially significant in cryogenic fluids such as LOX and LH2. Due to this effect, the performance of hydraulic equipment for cryogenic fluids, such as turbqpumps of rocket engines, is not as bad as predicted. In this paper, the size of the cavity in cryogenic fluid is estimated numerically taking the thermodynamic effect of cavitation into consideration. A cavity is assumed to be a sheet cavity. From the results, the effects of the properties of liquid and Reynolds number on the thermodynamic effect of cavitation are investigated.

AB - The temperature depression of liquids due to latent heat of vaporization causes vapor pressure depression and suppresses cavity growth. This phenomenon is called "thermodynamic effect of cavitation." This effect is especially significant in cryogenic fluids such as LOX and LH2. Due to this effect, the performance of hydraulic equipment for cryogenic fluids, such as turbqpumps of rocket engines, is not as bad as predicted. In this paper, the size of the cavity in cryogenic fluid is estimated numerically taking the thermodynamic effect of cavitation into consideration. A cavity is assumed to be a sheet cavity. From the results, the effects of the properties of liquid and Reynolds number on the thermodynamic effect of cavitation are investigated.

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KW - Cryogenic Fluid

KW - Numerical Analysis

KW - Thermodynamic Effect of Cavitation

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The numerical analysis of the effect of flow properties on the thermodynamic effect of cavitation

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Keywords

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