NUMERICAL SIMULATION OF THE INTERACTION OF A SHOCK WAVE WITH A SUPERSONIC LAMINAR BOUNDARY LAYER IN THE PRESENCE OF HEAT AND MASS EXCHANGE WITH THE SURFACE

Abstract

The results of parametric numerical experiments on the influence of heat and mass transfer on flow separation during the interaction of an oblique shock wave with a laminar boundary layer are presented. An implicit finite-volume algorithm for solving the Navier-Stokes equations, based on the Roe scheme, using the Jameson flow limiter, is implemented. Based on the analysis of spatial distributions of pressure, density profiles, dynamic viscosity coefficient, longitudinal components of velocity and momentum in the boundary layers, the main factors determining changes in the structure of the separation interaction are revealed. It is shown that despite the different physical nature of the influence, heat and mass transfer with the surface has a similar resulting effect on the size of the supersonic separation zone. It was found that by means of heat and mass transfer it is possible to prevent the occurrence of a separation zone in two-dimensional supersonic flows.