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首页> 外文期刊>Fluid Dynamics >The Flow and Heat Transfer at Start-Up of an Arbitrarily Shaped Body in a Viscous Heat-Conducting Gas
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The Flow and Heat Transfer at Start-Up of an Arbitrarily Shaped Body in a Viscous Heat-Conducting Gas

机译：粘性导热气体中任意形状物体启动时的流动和传热

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摘要

The flow corresponding to the start-up of an arbitrarily shaped body in a viscous heat-conducting gas is analyzed. The established fact of fluid incompressibility at short times is used. In the first approximation, in the neighborhood of each point on the body surface the flow and heat transfer are proved to be the same as for an infinite plate coinciding with the tangential plane at this point. The corrections for the curvature of the body surface are found. For determining the flows near a cylinder of arbitrary shape and near a spherical bluntness, the start-up problems for a circular cylinder and a sphere are considered. The possibility of extending the results to the case of reacting gases is discussed.
机译：分析与在粘性导热气体中任意形状的物体的启动相对应的流动。使用已确定的在短时间内流体不可压缩的事实。在第一近似中，在身体表面上每个点的附近，流动和热传递被证明与在该点与切平面重合的无限板相同。找到了对身体表面曲率的校正。为了确定在任意形状的圆柱体附近和在球形钝度附近的流动，考虑了圆柱体和球体的启动问题。讨论了将结果扩展到反应气体的可能性。

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