Computation of Supersonic Turbulent Flowfield With Transverse Injection
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摘要: 应用显式的五阶WENO格式,结合k-ε湍流模型,求解三维Favre平均N-S方程,计算了从方孔横向喷出的声速气流与马赫数为30的超声速气流的干扰流场。结果表明,在射流上游,射流的阻碍使超声速气流产生分离,形成两个主要的回流区域,主回流导致在方孔射流两侧形成马蹄涡区域,射流下游存在低压区域,形成较小的回流以及一对螺旋形旋涡。Abstract: Three-dimensional steady flowfield generated by transverse sonic injection into a supersonic flow was simulated by solving the Favre-averaged Navier-Stokes equations using the weighted essentially nonoscillatory(WENO)schemes and Jones-Launder k-E model.Results indicate that in the upstream of the square injection there exist two main recirculation regions and the primary vortex induces the horseshoe vortex region.In the downstream there is a low pressure region which conduces a pair of helical vortex.
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Key words:
- injection /
- N-S equation /
- k-Emodel /
- weighted ENO scheme
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