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Numerical Solutions of Supersonic and Hypersonic Laminar Compression Corner Flows

机译:超音速和高音速层流角流的数值解

摘要

An efficient time-splitting, second-order accurate, numerical scheme is used to solve the complete Navier-Stokes equations for supersonic and hypersonic laminar flow over a two-dimensional compression corner. A fine, exponentially stretched mesh spacing is used in the region near the wall for resolving the viscous layer. Good agreement is obtained between the present computed results and experimental measurement for a Mach number of 14.1 and a Reynolds number of 1.04 x 10(exp 5) with wedge angles of 15 deg, 18 deg, and 24 deg. The details of the pressure variation across the boundary layer are given, and a correlation between the leading edge shock and the peaks in surface pressure and heat transfer is observed.
机译:一个有效的时间分裂,二阶精确的数值方案用于求解二维压缩角上超音速和高音速层流的完整Navier-Stokes方程。在壁附近的区域中使用了精细的,呈指数形式拉伸的网格间距来解决粘性层。对于楔形角为15度,18度和24度的马赫数14.1和雷诺数1.04 x 10(exp 5),在当前计算结果和实验测量结果之间取得了良好的一致性。给出了边界层上压力变化的详细信息,并且观察到前缘冲击与表面压力和热传递峰值之间的相关性。

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