航空学报 > 1987, Vol. 8 Issue (8): 377-381

超音进气道的亚音扩压器流场的数值计算和实验研究

孙晓华, 黄熙君   

  1. 北京航空学院
  • 收稿日期:1986-12-16 修回日期:1900-01-01 出版日期:1987-08-25 发布日期:1987-08-25

AN ANALYTICAL AND EXPERIMENTAL STUDY OF A SUBSONIC DIFFUSER OF A SUPERSONIC INLET

Sun Xiaohua, Huang Xijuh   

  1. Beijing Institute of Aeronautics and Astronautics
  • Received:1986-12-16 Revised:1900-01-01 Online:1987-08-25 Published:1987-08-25

摘要: 本文对二维、亚音扩压管道中的粘性流动进行了数值计算,并对同样的扩压器模型进行了风洞吹风实验。 根据要计算的二维、亚音、壁面扩张角不太大的管道中的粘流,我们对N-S方程进行了抛物化假设,化成可沿流程推进求解的抛物型方程,再用有限差分进行计算。 经与实验结果对比,证明本文采用的结合零方程紊流模型,在几何流线坐标系下求解抛物型方程的方法对解决二维、亚音扩压管中分离区以前的流动问题,可得到满意的结果。

Abstract: Two computer programs using parabolic method have been designed to pr dict flows through a two dimensional, curved wall, subsonic diffuser of a supersonic inlet. Experiments were carried out to measure the whole flow field. The computer results are compared with the experimental data and the agreement is good a yeriaty of flows.