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概述了一种采用粘流/无粘流相互作用原理计算跨音速粘流的方法。采用熵修正激波算子计及跨越激波时的熵增,形成的非等熵位势方法可比传统的位势方法更准确地计算无粘流动。提出了一种流向速度型,结合其它辅助关系式导出了三维湍流边界层积分方程反方法。用此方法可求得粘流解。利用半反耦合方式耦合了无粘流和粘流解。数值算例表明,计算结果与实验结果吻合;且对计算机的要求较低。
A method for calculating transonic viscous flow using the principle of viscous / non-viscous flow interaction is presented. Entropy-modified shock operator is used to account for the entropy increase across the shock. The non-isentropic potential method is more accurate than the traditional method to calculate the non-viscous flow. A velocity-velocity model is proposed, and the inverse method of three-dimensional turbulent boundary layer integral equation is derived with other auxiliary relations. Use this method can be obtained viscous solution. The use of semi-anti-coupled coupling of non-viscous flow and viscous solution. Numerical examples show that the calculated results are in good agreement with the experimental results and the computer requirements are low.