RT Journal Article ID 29786f9133f6a0ce A1 Obraz, Anton Olegovich A1 Fedorov, A. V. T1 THE HIGH-SPEED FLOW STABILITY (HSFS) SOFTWARE PACKAGE FOR STABILITY ANALYSIS OF COMPRESSIBLE BOUNDARY LAYERS JF TsAGI Science Journal JO TSAGI YR 2017 FD 2017-11-22 VO 48 IS 3 SP 223 OP 242 K1 linear theory of stability K1 eN-method K1 direct numerical simulation K1 laminar-to-turbulent transition K1 hypersonic flow K1 boundary layer K1 biorthogonal basis AB An applied software package, the high-speed flow stability (HSFS) solver, is developed to analyze the stability of compressible boundary layers over streamlined bodies of practical configurations. The methodology used to compute the Reynolds numbers for the onset of a laminar-to-turbulent transition is based on linear stability theory and the semi-empirical eN-method. Analysis of unstable wave packets in direct numerical simulations of the transitional boundary layers is based on the expansion of an arbitrary disturbance into a biorthogonal eigenfunction system. The numerical methods are verified in a wide range of free stream Mach and Reynolds numbers. At subsonic speeds the transition Reynolds numbers are computed for straight and swept wings. At supersonic speeds the results of computations for sharp cones at zero angle of attack are presented. At hypersonic speeds the onset of the transition is predicted for blunted cones. For all of cases under consideration, a comparison of the experimental data and computations from previous studies is provided. PB Begell House LK https://www.dl.begellhouse.com/journals/58618e1439159b1f,1829cda51b4888fd,29786f9133f6a0ce.html