Numerical analysis of deterioration phenomena in heat transfer to supercritical water

S. Koshizuka; N. Takano; Y. Oka

doi:10.1016/0017-9310(95)00008-W

Numerical analysis of deterioration phenomena in heat transfer to supercritical water

S. Koshizuka, N. Takano, Y. Oka

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

300 Citations (Scopus)

Abstract

Deterioration in heat transfer at supercritical water cooling in a vertical pipe is numerically analyzed. The calculation is based on a parabolic solver for steady-state equations in r-z two dimensions, a k-ε{lunate} model for turbulence and a steam table library for physical properties of supercritical water. Calculation results agree with the experimental data of Yamagata et al. It is found that heat transfer deterioration is caused by two mechanisms depending on the flow rate. When the heat flux is increased much above the deterioration heat flux, a violent oscillation is observed in the temperature distribution.

Original language	English
Pages (from-to)	3077-3084
Number of pages	8
Journal	International Journal of Heat and Mass Transfer
Volume	38
Issue number	16
DOIs	https://doi.org/10.1016/0017-9310(95)00008-W
Publication status	Published - 1995 Nov
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/0017-9310(95)00008-W

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title = "Numerical analysis of deterioration phenomena in heat transfer to supercritical water",

abstract = "Deterioration in heat transfer at supercritical water cooling in a vertical pipe is numerically analyzed. The calculation is based on a parabolic solver for steady-state equations in r-z two dimensions, a k-ε{lunate} model for turbulence and a steam table library for physical properties of supercritical water. Calculation results agree with the experimental data of Yamagata et al. It is found that heat transfer deterioration is caused by two mechanisms depending on the flow rate. When the heat flux is increased much above the deterioration heat flux, a violent oscillation is observed in the temperature distribution.",

author = "S. Koshizuka and N. Takano and Y. Oka",

year = "1995",

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T1 - Numerical analysis of deterioration phenomena in heat transfer to supercritical water

AU - Koshizuka, S.

AU - Takano, N.

AU - Oka, Y.

PY - 1995/11

Y1 - 1995/11

N2 - Deterioration in heat transfer at supercritical water cooling in a vertical pipe is numerically analyzed. The calculation is based on a parabolic solver for steady-state equations in r-z two dimensions, a k-ε{lunate} model for turbulence and a steam table library for physical properties of supercritical water. Calculation results agree with the experimental data of Yamagata et al. It is found that heat transfer deterioration is caused by two mechanisms depending on the flow rate. When the heat flux is increased much above the deterioration heat flux, a violent oscillation is observed in the temperature distribution.

AB - Deterioration in heat transfer at supercritical water cooling in a vertical pipe is numerically analyzed. The calculation is based on a parabolic solver for steady-state equations in r-z two dimensions, a k-ε{lunate} model for turbulence and a steam table library for physical properties of supercritical water. Calculation results agree with the experimental data of Yamagata et al. It is found that heat transfer deterioration is caused by two mechanisms depending on the flow rate. When the heat flux is increased much above the deterioration heat flux, a violent oscillation is observed in the temperature distribution.

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EP - 3084

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 16

ER -

Numerical analysis of deterioration phenomena in heat transfer to supercritical water

Abstract

ASJC Scopus subject areas

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