한국전산유체공학회:학술대회논문집

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

Compressible Boundary Layer Stability Analysis With Parabolized Stability Equations

  • Bing, Gao (Department of Aerospace Engineering, School of Mechanical and Aerospace Systems, KAIST) ;
  • Park, S.O. (Department of Aerospace Engineering, School of Mechanical and Aerospace Systems, KAIST)
  • Published : 2006.10.13
Download PDF
⟨ Previous Next ⟩

Abstract

An accurate and cost efficient method PSE is used for the stability analysis of 2D or 3D compressible boundary layers. A highly accurate finite difference PSE code has been developed at a general curvilinear coordinate system using an implicit marching procedure to deal with a broad range of transition predictions problems. Evolution of disturbances in compressible flat plate boundary layers are studied for free-stream Mach numbers ranging from 0 to 1.5. The effect of mean-flow nonparallelism is found to be weak on two dimensional waves and strong on three dimensional waves. The maximum amplification rate increases monotonically with Mach number. The present PSE solutions are compared with previous numerical investigations and experimental results and are found to be in good agreement.

Keywords