The propagation of perturbations in supersonic boundary layers

✍ Scribed by I.I. Lipatov

• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 465 KB
• Volume: 60
• Category: Article
• ISSN: 0021-8928
• DOI: 10.1016/s0021-8928(96)00058-5

✦ Synopsis

Unsteady processes involving the propagation of perturbations in two-dimensional boundary layers are analysed in the strong interaction regime. A system of characteristics and subcharacteristics corresponding to wave processes in gas dynamics as well as convection and diffusion processes is determined. A system of equations describing the processes of weak interactions between the flow in a laminar Ixmndary layer and an external supersonic flow near a cooled surface is analysed. For a flow described by the self-similar system of equations for the boundary layer, the velocity of propagation of perturbations as a function of a temperature factor is d~termined from a numerical solution.