实验流体力学2017，Vol.31Issue(1)：87-92,99,7.DOI:10.11729/syltlx20160079
低雷诺数效应对0.6m连续式风洞性能影响
Effects of low Reynolds number on performance of 0.6m continuous wind tunnel
熊波 1程松 1罗新福 1周恩民1
作者信息
- 1. 中国空气动力研究与发展中心，四川 绵阳 621000
- 折叠
摘要
Abstract
In the wind tunnel tests,the method of decreasing stagnation pressure is usually adopted to expand the simulation scope of Reynolds number.Compared with the normal pressure test,in the low Reynolds number situation,the accuracy of the test data is directly affected by whether or not the change of the flow field is obviously and whether or not the quality of the flow field satisfies the index.In order to study the influence of Reynolds number on the 0.6m continuous wind tunnel performance,the relevant tests were carried out in the 0.6m continuous wind tunnel.Based on arrangement and analysis of the tests data,the results were given.It shows that:(1)The Reynolds number has obvious effect on the performance of the compressor, stagnation pressure control precision,Mach number control precision,the flow uniformity etc. When Rec<105 (c=0.1 A,A is the cross-sectional area of the test section),the effect of Reynolds number on the performance of wind tunnel is obvious.The smaller the Reynolds number is,the greater the effect is.(2)The 0.6m continuous wind tunnel can accuratly manifest the influence law of the effects of Reynolds number on the flow field performance of the wind tunnel and the force test data.Therefore,it is a good test platform for the capability research on aircraft,airfoil,engine,etc.,at low Reynolds number.关键词
雷诺数/压缩机/连续式风洞/流场性能Key words
Reynolds number/compressor/continuous wind tunnel/flow field performance分类
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熊波,程松,罗新福,周恩民..低雷诺数效应对0.6m连续式风洞性能影响[J].实验流体力学,2017,31(1):87-92,99,7.
