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Enhanced Transient Heat Transfer From Arrays of Jets Impinging on a Moving Plate

机译：撞击在运动板上的射流阵列增强的瞬态热传递

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摘要

This article addresses the numerical analysis of single and multiple circular jets impinging perpendicularly on a flat plate for heating and cooling purposes. Computational fluid dynamics (CFD) is used to evaluate heat transfer calculations for different configurations and different flow boundary conditions. The commercial CFD package FLUENT is employed with various turbulence models. Results for a single jet are validated against experimental data. The SST k — co turbulence model is compared with the elliptic V2F model, and both were validated against experimental data. Results were obtained for a range of jet Reynolds numbers and jet-to-target distances. Optimization results for the single jet case are validated against experimental data. The SST k — at and V2F turbulence models succeeded with a reasonable accuracy (within 20% error) in reproducing experimental results. The heat transfer rates from the use of multijet configurations are discussed in the article. Transient heat transfer between multiple jets and a moving plate is more difficult to study due to the changing boundaries but is also very relevant in engineering applications. This article presents full CFD calculations of the transient heat transfer between a bank of circular jets and a moving plate. Design optimization has also been achieved for the single-and multiple-jet configurations.
机译：本文讨论了垂直和垂直撞击在平板上以加热和冷却的单个和多个圆形射流的数值分析。计算流体动力学（CFD）用于评估不同配置和不同流动边界条件下的传热计算。商业CFD软件包FLUENT用于各种湍流模型。单次喷射的结果已根据实验数据进行了验证。将SST k_co湍流模型与椭圆形V2F模型进行了比较，并且都针对实验数据进行了验证。获得了一系列雷诺数和射流至目标距离的结果。单喷箱的优化结果根据实验数据进行了验证。 SST k_at和V2F湍流模型成功地以合理的精度（误差在20％以内）再现了实验结果。本文讨论了使用多喷嘴配置的传热速率。由于边界的变化，更难以研究多个喷嘴和移动板之间的瞬态热传递，但在工程应用中也非常重要。本文介绍了完整的CFD计算，用于计算一排圆形喷嘴和一个移动板之间的瞬态热传递。对于单喷嘴和多喷嘴配置，还实现了设计优化。

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  • 来源
    《Heat Transfer Engineering》 |2013年第6期|361-371|共11页
  • 作者

    JIHAD BADRA; ASSAAD R. MASRI; MASUD BEHNIA;

  • 作者单位

    University of Sydney, Sydney, Australia;

    University of Sydney, Sydney, Australia;

    Address correspondence to Masud Behnia, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Building J07, Sydney, NSW, 2006, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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