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Large Eddy Simulation of Normally Impinging Round Air-Jet Heat Transfer at Moderate Reynolds Numbers

机译:中雷诺数下正常撞击圆形喷气传热的大涡模拟

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摘要

This paper presents results of dynamic Smagorinsky-type model-based large eddy simulation of normally impinging round air-jet heat transfer at moderate Reynolds numbers (4,400, 10~4, and 2.3 × 10~4) with orifice-to-plate distance fixed at 5. Using software Open Source Field Operation and Manipulation (OpenFOAM), predicted distributions of mean velocity components, velocity fluctuations, and turbulent stresses in the vertical and radial directions are compared with existing empirical and numerical results. For the predicted heat flow from the target wall, there is satisfactory consistency of the mean Nusselt number in comparison with measured empirical results.
机译:本文介绍了基于动态Smagorinsky模型的大涡模拟的结果,该模拟以中等雷诺数(4,400、10〜4和2.3×10〜4)固定孔与板的距离来进行正常撞击的圆形喷气传热at5。使用开放源代码现场操作和操纵软件(OpenFOAM),将垂直速度和径向方向的平均速度分量,速度波动和湍流应力的预测分布与现有的经验和数值结果进行了比较。对于从目标壁传出的预计热量,与实测结果相比,平均努塞尔数具有令人满意的一致性。

著录项

  • 来源
    《Heat Transfer Engineering》 |2017年第18期|1439-1448|共10页
  • 作者单位

    Department of Thermal Science and Energy Engineering, USTC, Hefei, China;

    Research Institute of Chemical Defense, The 5th Department, Beijing, China;

    Department of Thermal Science and Energy Engineering, USTC, Hefei, China;

    Faculty of Engineering Science, USTC, Hefei, China;

  • 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
  • 中图分类
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