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Effect of Görtler-like vortices of various intensity on heat transfer in supersonic compression corner flows
International Journal of Heat and Mass Transfer ( IF 5.2 ) Pub Date : 2020-04-01 , DOI: 10.1016/j.ijheatmasstransfer.2020.119310
P.V. Chuvakhov , V.N. Radchenko

Abstract Experiments on heat transfer over Mach 8, 15° compression corner flow affected by Gortler-like reattachment vortices of controllable intensity are carried out in the shock wind tunnel UT-1 M (TsAGI). Experiments cover two Reynolds numbers Re∞,L=(1.75±0.08) × 105 and Re∞,L=(3.90±0.15) × 105 based on the sharp flat plate length at which the reattachment flow is close to laminar or beginning transitional, respectively. The effect of streamwise vortices of different intensity on spanwise variations of the heat flux and its spanwise-averaged level at the reattachment region is investigated. The intensity of the vortices is varied by accurate controlling the height of a spanwise rake of cylindrical pins (seeding elements) placed on the plate ahead of the separation bubble.

中文翻译:

不同强度的类格特勒涡流对超音速压缩角流传热的影响

摘要 在激波风洞UT-1 M (TsAGI) 上进行了8 马赫15°压缩角流受强度可控的类戈特勒重附涡影响的传热实验。实验涵盖两个雷诺数 Re∞,L=(1.75±0.08) × 105 和 Re∞,L=(3.90±0.15) × 105 基于重附流接近层流或开始过渡的尖锐平板长度,分别。研究了不同强度的流向涡对热通量的展向变化及其在重附区域的展向平均水平的影响。通过精确控制放置在分离气泡前面板上的圆柱销(播种元件)的展向耙的高度来改变涡流的强度。
更新日期:2020-04-01
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