Direct numerical simulation on turbulenton-turbulent interface in compressible turbulent boundary layer

摘要

Direct numerical simulations (DNSs) of temporally developing subsonic and supersonic boundary layers are carried outrnfor investigating the turbulenton-turbulent interface (TNTI). The outer edge of TNTI layer (irrotational boundary) isrndetected as an isosurface of small vorticity magnitude. The vorticity dynamics is studied near the TNTI with the statisticsrncalculated as a function of the distance from the irrotational boundary.