航空学报 > 1991, Vol. 12 Issue (10): 483-493

跨音速粘流的计算

朱自强, 马侠, 陈炳永   

  1. 北京航空航天大学
  • 收稿日期:1990-08-16 修回日期:1991-03-01 出版日期:1991-10-25 发布日期:1991-10-25

THE COMPUTATION OF TRANSONIC VISCOUS FLOW

Zhu Ziqiang, Ma Xia, Chen Bingyong   

  1. Beijing University of Aeronautics
  • Received:1990-08-16 Revised:1991-03-01 Online:1991-10-25 Published:1991-10-25

摘要: 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。

关键词: 跨音速流, 边界层, 非等熵位势流, 粘流/无粘流相互作用

Abstract: A transonic viscous flow computational method is described by using viscous/inviscid interaction technique. A shock point operator is introduced to account for the entropy change a(?)ross the shock and a nonisentropic full potential method is formulated to allow a more accurate inviscid flow computation. A new streamwise velocity profile is proposed. Based on this profile and other auxiliary relationship, a three dimensional inverse integral compressible turbulent boundary layer method is for-mulated.The inviscid and viscous solution are coupled with semi-inverse scheme.The numerical results show that this viscous/inviscid interaction method is in good agreement with experimental data and requires less computer resources.

Key words: transonic flow, boundary layer, noniseatropic flowviscous/iaviseid inter-action