中文摘要：

采用非结构混合网格方法数值求解NS方程，对发动机进排气效应进行了模拟。详细介绍了进、排气边界条件的设定，通过对DLR—F4标模和TPS风洞试验模型模拟，验证了程序的可靠性。通过对某典型翼吊式民机的外形的计算，分析了进排气效应对机翼气动载荷的影响。计算结果表明，本文采用的计算方法可以较好地预测大飞机与动力装置之间的干扰影响，具有较好的工程应用价值。

英文摘要：

In this paper, the effects of powered of civil aircraft with turbo-fan engine were studied numeri- cally by solving the Navier-Stokes equations based on mixed grids. The boundary conditions of fan-inlet as well as jet-exhaust were explained in detail. The DLR-F4 and the TPS model were simulated, the results in- dicated that the program used here was reliable. Finally, this program was applied to a typical civil aircraft, the effects of powered turbo-fan engine for the surface pressure coefficients on the wing was analysed. The result indicated that the numerical method for the powered effects simulation is very valuable in the aircraft design.