Direct Numerical Simulation of supersonic Boundary Layer Stabilization Using Grooved Wavy Surface

Andrey Novikov, Ivan Egorov, Alexander Fedorov
2010 48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition   unpublished
Two-dimensional direct numerical simulation (DNS) of stabilization of supersonic boundary layers over a shallow grooved wavy plate at Mach=5.9 is carried out. Numerical experiments are conducted for propagation of disturbances generated by a suction-blowing actuator placed on the wall. Numerical data obtained for a flat plate are consistent with the linear stability theory (LST) and stability experiments in the "Transit-M" wind tunnel of the Institute of Theoretical and Applied Mechanics. It is
more » ... shown that high-frequency forcing excites unstable disturbances in the flat-plate boundary layer relevant to the second-mode instability. The wavy wall leads to damping of these disturbances in a wide frequency band of the forcing.
doi:10.2514/6.2010-1245 fatcat:j2zgyeiq65bktdax6o2l5gvklu