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Shock Wave Laminar Boundary Layer Interaction Over a Double Wedge in a High Mach Number Flow

机译:高马赫数流中双楔上的冲击波层流边界层相互作用

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Shock wave laminar boundary layer interaction (SWBLI) over a double wedge at Mach 7.14 and 7.11 were simulated using the commercial flow solver GASPex. An inviscid simulation was performed at Mach 7.14 for validation. Results for the region downstream of the first shock wave show less than one percent error in comparison with oblique shock wave theory. Laminar perfect gas simulations were performed for stagnation enthalpies of 2 MJ/kg and 8 MJ/kg. The computed heat transfer distribution agrees closely with the experiment upstream of the shock wave laminar boundary layer interaction; however, significant differences are evident in the region of the interaction. In particular, the time-accurate simulations indicate a significantly longer physical time to achieve steady state than observed in the experiment.
机译:使用商用流量求解器GASPex模拟了在7.14和7.11马赫处的双楔形波上的冲击波层流边界层相互作用(SWBLI)。为了验证,在7.14马赫进行了无痕模拟。与倾斜冲击波理论相比,第一冲击波下游区域的结果显示出小于百分之一的误差。对2 MJ / kg和8 MJ / kg的停滞焓进行了层流完美气体模拟。计算得到的传热分布与冲击波层流边界层相互作用上游的实验非常吻合。但是,在交互区域中存在明显差异。特别是,时间精确的模拟表明,达到稳态所需的物理时间比实验中观察到的要长得多。

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