某型民机着陆构型粘性气动力计算

采用ICEM对某型民机着陆构型进行多块结构化点对点网格剖分,运用基于N-S方程的WISE MAN PLUS软件对该构型低速粘性复杂流场进行数值模拟.在进场条件下,计算的升力和试验值误差在3.8%以内,俯仰力矩和试验误差在3.6%以内;计算与试验失速迎角差别在1°左右,最大升力系数较试验小6.3%.同时还给出了一些流场显示结果,对复杂流场进行了机理分析.计算与风洞试验结果符合较好,满足工程需要.

Simulation of Viscous Flow For a Civil Aviation Aircraft in Landing Configuration

Multi-block structured point to point grids have been generated by ICEM for a civil aviation aircraft in landing configuration.The low speed viscous complex flow is simulated using the WISEMAN PLUS software,based on N-S equations.At approach condition,the difference between computed lift coefficient and experimental data is less than 3.8%,the pitching moment is less than 3.6%.The stall angle is less than 1 degree,and the computed maximum lift coefficient is 6.3% below the experiment.The paper also presents ...