AN EXPERIMENTAL INVESTIGATION OF FLOW PAST A SMOOTH CIRCULAR CYLINDER AT THE SUB-CRITICAL REGION

机译：亚临界区光滑圆圆柱体流动的实验研究

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An experimental investigation for the incompressible flow past a smooth circular cylinder at the sub-critical region is presented in detail. A smooth circular cylinder is placed in a wind tunnel and the local pressure distribution on the cylinder surface is measured subtly. The Reynolds Number ranges from 10~4 to 8 x10~4. The experimental data show that there exists a nadir point of the surface pressure in the front the across section of the cylinder and the pressure nadir position varies with the Reynolds number. It is found that this point tends to move forward of the cylinder as Reynolds number increases. Based on the present experimental findings, a simple algebraic expression describing the relationship between the location of the pressure's nadir and Reynolds number is proposed.

机译：详细介绍了在亚临界区域流经光滑圆柱体的不可压缩流的实验研究。将光滑的圆柱体放置在风洞中，并巧妙地测量圆柱体表面上的局部压力分布。雷诺数范围从10〜4到8 x10〜4。实验数据表明，在圆柱体的整个横截面的前面，存在一个表面压力的最低点，并且该压力的最低点位置随雷诺数而变化。可以发现，随着雷诺数增加，该点趋于向圆柱体的前方移动。基于目前的实验发现，提出了一个简单的代数表达式，描述了压力最低点的位置与雷诺数之间的关系。

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来源
《2002 ASME International Mechanical Engineering Congress and Exposition , Nov 17-22, 2002, New Orleans, Louisiana》|2002年|p.131-135|共5页
会议地点 New Orleans LA(US);New Orleans LA(US)
作者
Chuan He; Tianyu Long; Mingdao Xin; Benjamin T. F. Chung;
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作者单位

Institute of Engineering Thermophysics Chongqing University Chongqing, 400044, CHN;

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会议组织
原文格式 PDF
正文语种 eng
中图分类能源与动力工程;
关键词
incompressible flow; circular cylinder; pressure distribution; sub-critical flow;

机译：不可压缩的流动圆柱体压力分布亚临界流;

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AN EXPERIMENTAL INVESTIGATION OF FLOW PAST A SMOOTH CIRCULAR CYLINDER AT THE SUB-CRITICAL REGION

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