Numerical analysis of convection heat transfer on high-temperature rotating disk at bottom surface of air flow duct

Shigeki Hirasawa; Tsuyoshi Kawanami; Katsuaki Shirai

doi:10.1115/IMECE2014-36142

Numerical analysis of convection heat transfer on high-temperature rotating disk at bottom surface of air flow duct

Shigeki Hirasawa, Tsuyoshi Kawanami, Katsuaki Shirai

Research output: Contribution to conference › Paper › peer-review

3 Citations (Scopus)

Abstract

Convection heat transfer distribution on a high-temperature rotating disk in a horizontal air flow duct was analyzed by three-dimensional computational fluid dynamics (CFD) code. The temperature of the disk was 1000°C, and the rotation speed was 60-480 rpm. The temperature of the inlet air was 25°C, and the velocity was 0-1 m/s. The air flow pattern was affected by natural convection caused by temperature difference, forced convection flow along the disk surface, rotation flow induced by the disk, and volume expansion of gas. The calculated results show that the ratio of the maximum and minimum values of the average heat flux along the circumstance direction on the disk was large when the rotation speed and air velocity were small.

Original language	English
DOIs	https://doi.org/10.1115/IMECE2014-36142
Publication status	Published - 2014
Externally published	Yes
Event	ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014 - Montreal, Canada Duration: 2014 Nov 14 → 2014 Nov 20

Other

Other	ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014
Country	Canada
City	Montreal
Period	14/11/14 → 14/11/20

Keywords

Forced convection
Heat flux
Natural convection
Rotating disk
Velocity distribution

ASJC Scopus subject areas

Mechanical Engineering

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10.1115/IMECE2014-36142

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Numerical analysis of convection heat transfer on high-temperature rotating disk at bottom surface of air flow duct. / Hirasawa, Shigeki; Kawanami, Tsuyoshi; Shirai, Katsuaki.

2014. Paper presented at ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014, Montreal, Canada.

Research output: Contribution to conference › Paper › peer-review

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abstract = "Convection heat transfer distribution on a high-temperature rotating disk in a horizontal air flow duct was analyzed by three-dimensional computational fluid dynamics (CFD) code. The temperature of the disk was 1000°C, and the rotation speed was 60-480 rpm. The temperature of the inlet air was 25°C, and the velocity was 0-1 m/s. The air flow pattern was affected by natural convection caused by temperature difference, forced convection flow along the disk surface, rotation flow induced by the disk, and volume expansion of gas. The calculated results show that the ratio of the maximum and minimum values of the average heat flux along the circumstance direction on the disk was large when the rotation speed and air velocity were small.",

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N2 - Convection heat transfer distribution on a high-temperature rotating disk in a horizontal air flow duct was analyzed by three-dimensional computational fluid dynamics (CFD) code. The temperature of the disk was 1000°C, and the rotation speed was 60-480 rpm. The temperature of the inlet air was 25°C, and the velocity was 0-1 m/s. The air flow pattern was affected by natural convection caused by temperature difference, forced convection flow along the disk surface, rotation flow induced by the disk, and volume expansion of gas. The calculated results show that the ratio of the maximum and minimum values of the average heat flux along the circumstance direction on the disk was large when the rotation speed and air velocity were small.

AB - Convection heat transfer distribution on a high-temperature rotating disk in a horizontal air flow duct was analyzed by three-dimensional computational fluid dynamics (CFD) code. The temperature of the disk was 1000°C, and the rotation speed was 60-480 rpm. The temperature of the inlet air was 25°C, and the velocity was 0-1 m/s. The air flow pattern was affected by natural convection caused by temperature difference, forced convection flow along the disk surface, rotation flow induced by the disk, and volume expansion of gas. The calculated results show that the ratio of the maximum and minimum values of the average heat flux along the circumstance direction on the disk was large when the rotation speed and air velocity were small.

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KW - Velocity distribution

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