跨音速飞机模型试验洞壁干扰数值模拟的初步研究

分别以固壁条件和洞壁附近实测的压力分布，模拟各类实壁和透气壁试验段的洞壁边界条件，利用N-S方程数值求解模型在风洞中的绕流场，得出洞壁干扰对跨音速模型绕流的影响和气动力修正结果。初步研究结果表明，该方法能较有效地模拟模型在跨音速风洞中的绕流场，GBM04A模型在0.6m风洞中的试验结果经洞壁干扰修正后与无干扰参考结果吻合较好。

PRELIMINARY RESEARCH ON NUMERICAL SIMULATION OF TRANSONIC WALL INTERFERENCE FOR AIRCRAFT MODEL TESTS

Preliminary researches are presented on numerical simulation of transonic wall interference for aircraft model tests.The wall effects on the tunnel flow field over the model and wall interference corrections to aerodynamic forces and moments are determined by using the solid wall conditions or measured pressure distributions near walls as the boundary conditions of test section and numerically calculating the tunnel flow field based on N S equations. Preliminary researches show that the method can effectively simulate the transonic tunnel flow over the model, and the corrected test results in 0.6m wind tunnel are in quite good agreement with the free interference reference data.