Development and Validation of Parabolized Stability Equation (PSE) IAI Code for Stability and Transition Analysis for 3-D Compressible Boundary-Layers

摘要

The objective of this work is to validate a system developed at the IAI CFD Departmentfor prediction of 3D boundary-layer transition on swept wing surface. The system isbased on the PSE method and consists of the in-house IAI industrial high-order accuracyNavier-Stokes CFD code (NES), an interface code NES/PSE for extraction of surface metrics,boundary-layer profiles, displacement and momentum thickness, and two in-house developedstability codes based on LSE and PSE equations respectively. The location of the onset oftransition is estimated on the basis of N-factor correlated with the eN empirical method. Detailedmathematical derivation process and formulation of PSE equations in non-orthogonalcurvilinear coordinate system has been presented in [18]. The results obtained are validatedby comparisons with solutions obtained by [14, 15, 17, 19, 20, 21] for the following test cases:1) TS instability of laminar Blasius boundary-layer profiles for normal and oblique perturbations2) TS instability of laminar auto-similar Falkner-Skan boundary-layer profiles under adversepressure gradient (▽p > 0) for normal and oblique perturbations3) TS instability of 2D laminar flow about ONERA D airfoil (normal wave)4) TS instabilities of 3D laminar flow about ONERA D swept wing experiment5) CF instabilities of 3D laminar flow about infinite IAI swept wing CF18p5.