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Numerical study of interference between simple-shape bodies in hypersonic flows

机译:高超声速流动中简单形体之间干涉的数值研究

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Hypersonic rarefied-gas flows near two side-by-side plates and cylinders, toroidal balloon, plate and cylinder over a plane surface, and plate behind a cylinder in argon, nitrogen, oxygen, and carbon dioxide have been studied numerically using the direct simulation Monte-Carlo technique under the transition flow conditions at Knudsen numbers from 0.004 to 10. Strong influences of the geometrical factor (the ratio of a distance between bodies to a body length) and the Knudsen number on the flow structure about the bodies (shock-wave shapes, the configuration of subsonic flow zones), skin friction, pressure distribution, lift, and drag have been found.
机译:使用直接模拟方法对高超声速稀有气体在两个并排的平板和圆柱体,环形气球,平板和圆柱体在平面上以及圆柱体后面的平板附近的氩,氮,氧和二氧化碳的流动进行了数值研究蒙特卡罗技术在Knudsen数为0.004到10的过渡流动条件下。几何因子(物体之间的距离与物体长度的比)和Knudsen数对物体周围流动结构的强烈影响(冲击波波形,亚音速流区的配置,皮肤摩擦,压力分布,升力和阻力已被发现。

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