停滞点
自由流
高超音速
滞止压力
停滞温度
机械
流量(数学)
航空航天工程
传热
材料科学
物理
工程类
马赫数
湍流
雷诺数
作者
Syed Raza Christopher Ali,Rafael Zárate Cárdenas,Rolf Radespiel,Thomas Schilden,Wolfgang Schröder
出处
期刊:Notes on numerical fluid mechanics and multidisciplinary design
日期:2017-10-31
卷期号:: 117-127
标识
DOI:10.1007/978-3-319-64519-3_11
摘要
Disturbance level measurements are carried out in the Hypersonic Ludwieg Tube Braunschweig (HLB) at $$\text{ Ma } = 5.9$$ considering three shapes of stagnation point probes (SPP) and two different types of high speed surface sensors. Navier Stokes mean-flow solutions are produced for the flow around the front shapes to increase the understanding of the dependence of the mean flow on the probe shape. Performed direct numerical simulation (DNS) for one SPP configuration delivers transfer functions as the ratio of incoming disturbance to surface data at the stagnation point. The transfer functions are used for computing the modal decomposition of representative disturbances in the freestream.
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