论文部分内容阅读
本文数值模拟了半球柱在跨音速、中等攻角时的粘性层流绕流，研究了流场中的复杂三维分离形态结构，其中包含流向与横向的主分离、二次分离、以及激波边界层的相互干扰，解释了在球柱接合部精确捕获的压力波动与流动主分离、二次分离的影响关系，这个现象是前人的计算［５，６］未捕捉到的。
In this paper, the viscous laminar flow around a hemispherical column at transonic and moderate angles of attack is numerically simulated. The complex three-dimensional detachment structure in the flow field is studied, including the main and secondary separation of flow direction and transverse direction, and the shock boundary The interference between layers explains the exact relationship between the pressure fluctuations trapped in the ball joint and the primary and secondary separation of flow. This phenomenon is not captured by previous calculations [5,6].