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