Analysis of the buoyancy-induced heat transfer in a rotating cavity

TIAN Shu-qing; XUE Hang; GAO Chao; LI Ying

Chinese

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Analysis of the buoyancy-induced heat transfer in a rotating cavity

更新时间：2026-07-07

- Analysis of the buoyancy-induced heat transfer in a rotating cavity
- Vol. 27, Issue 3, (2012)
- 作者机构：
  
  1. Technology Department, Aviation Industry Corporation of China Commercial Aircraft Engine Company Limited,Shanghai,China,200241
  2. Institute of Steam and Gas Turbines, Rheinisch-Westfaelische Technische Aachen University,Germany
  3. Civil Aircraft Marketing & Sales, Aviation Industry Corporation of China International Holding Corporation,Beijing,China,100101
  4. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics,Beijing,China,100191
  5. Hekou Oil Production Plant of Shengli Oilfield Sinopec Group,Shandong,Dongying,China,257200
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012
- 稿件说明：
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TIAN Shu-qing, XUE Hang, GAO Chao, et al. Analysis of the buoyancy-induced heat transfer in a rotating cavity[J]. 2012, 27(3).
DOI：

TIAN Shu-qing, XUE Hang, GAO Chao, et al. Analysis of the buoyancy-induced heat transfer in a rotating cavity[J]. 2012, 27(3). DOI：

摘要

In order to get a better knowledge of the heat transfer in compressor cavities of aero-engines

the simplified rotating cavity with two-plane discs

a shaft and a cylindrical rim has been investigated numerically and compared with the available measurements. The numerical results in agreement with the available experiments show large-scale instabilities. The disk local Nusselt numbers show mainly radial rising distributions for the heated disks with radial rising temperature profiles. In the present work

at the Reynolds number of 20000

the disk local Nusselt numbers are the correlations of the local Grashof number to the power of 1.89~2.6

and the value of the power is increased as the rotational Reynolds number goes up. At the rotational Reynolds number of 800000

the local Nusselt numbers are the correlations of the local Grashof number to the power of 0.68~2.6

and the value of the power is decreased as Reynolds number goes up. The area-averaged disk Nusselt number is the correlation of the Reynolds number to the power of 0.479 and the rotational Grashof number to the power of 0.12.

Abstract

In order to get a better knowledge of the heat transfer in compressor cavities of aero-engines

the simplified rotating cavity with two-plane discs

at the Reynolds number of 20000

the disk local Nusselt numbers are the correlations of the local Grashof number to the power of 1.89~2.6

and the value of the power is increased as the rotational Reynolds number goes up. At the rotational Reynolds number of 800000

the local Nusselt numbers are the correlations of the local Grashof number to the power of 0.68~2.6

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