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首页> 外文期刊>International Journal of Heat and Mass Transfer >Characteristics of temperature field in a closed cavity with centrifugal acceleration
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Characteristics of temperature field in a closed cavity with centrifugal acceleration

机译：封闭腔内离心加速度下的温度场特征

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摘要

A closed temperature chamber with multiple distributed heat sources, used in a multi-parameter combined environmental test, was presented. Coupling effects in it between centrifugal acceleration and temperature fields were studied. Fluid governing equations in non-inertial coordinate system were given. Flow and temperature fields of the air in the closed centrifugal cavity was analyzed. Numerical simulation was done by the FLUENT software and corresponding experiments were carried out. The results show that thermal buoyancy, centrifugal buoyancy and Coriolis force affect the temperature distribution obviously, and the temperature distributions differ as the magnitude of centrifugal acceleration changes. Non-uniformity of the air temperature increases with the magnitude of centrifugal acceleration. Moreover, the convective heat transfer is enhanced by the centrifugal acceleration. This study will provide theoretical basis for the multi-parameter combined environmental test concerned with centrifugal acceleration and temperature.
机译：提出了在多参数组合环境测试中使用的具有多个分布热源的密闭温度室。研究了离心加速度与温度场之间的耦合效应。给出了非惯性坐标系下的流体控制方程。分析了封闭离心腔中空气的流场和温度场。通过FLUENT软件进行了数值模拟，并进行了相应的实验。结果表明，热浮力，离心浮力和科里奥利力对温度分布有明显影响，且温度分布随离心加速度大小的变化而变化。空气温度的不均匀度随着离心加速度的大小而增加。此外，对流传热通过离心加速度得到增强。该研究将为涉及离心加速度和温度的多参数组合环境试验提供理论依据。

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  • 来源
  • 作者

    Wen He; G.H. Xu;

  • 作者单位

    The State Key Lab of Fluid Power Transmission and Control, Zhejiang Province Key Laboratory of Advanced Manufacturing Technology, Zhejiang University, Hangzhou 310027, PR China,Institute of Advanced Manufacturing Engineer-ing, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310027, PR China;

    The State Key Lab of Fluid Power Transmission and Control, Zhejiang Province Key Laboratory of Advanced Manufacturing Technology, Zhejiang University, Hangzhou 310027, PR China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Centrifugal acceleration; Buoyancy; Temperature distribution; Non-uniformity; Closed cavity; Multi-parameter combined environmental; test;

    机译：离心加速度浮力;温度分布不均匀;封闭腔多参数组合环境;测试;

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