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首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Heat transfer from a line source located in the periodic laminar near wake of a circular cylinder
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Heat transfer from a line source located in the periodic laminar near wake of a circular cylinder

机译：来自位于圆柱流附近的周期性层流中的线源的热传递

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摘要

This experimental study is devoted to the diffusion of a passive scalar downstream a line source located in a Benard-von Karman street. Measurements of velocity and temperature have been performed using LDA and cold wire thermometer with a phase reference. Information on the initial evolution of mean, fluctuating velocity and temperature and associated shear-stresses and heat fluxes fields are presented for two locations of the source: (x(s)* = 5; y(s)* = 0 and 1). The results show that the velocity field in the wake is strongly related to the geometric structure of vortices while the temperature field is controlled by both the time scale of rotation of the vortices and the location of the heated fluid within the vortex street. (c) 2005 Elsevier Inc. All rights reserved.
机译：这项实验研究致力于无源标量在位于Benard-von Karman街上的线源下游的扩散。速度和温度的测量已经使用LDA和带有相位基准的冷线温度计进行了。给出了关于源的两个位置的平均值，波动速度和温度的初始演化信息以及相关的切应力和热通量字段：（x（s）* = 5; y（s）* = 0和1）。结果表明，尾流中的速度场与旋涡的几何结构密切相关，而温度场则由旋涡的旋转时间尺度和旋涡街内加热流体的位置控制。 （c）2005 Elsevier Inc.保留所有权利。

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