6. Physics of a Fluid, Neutral and Ionized Gases

INFLUENCE OF HEAVY GAS BLOWING INTO THE WALL LAYER OF SUPERSONIC BOUNDARY-LAYER ON ITS TRANSITION

Vladimir I. Lysenko
1. Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences Novosibirsk, Russian Federation
vl@itam.nsc.ru
Boris V. Smorodsky
1. Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences Novosibirsk, Russian Federation
smorodsk@itam.nsc.ru
Yuri G. Yermolaev
1. Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation
2. Novosibirsk State University Novosibirsk, Russian Federation
yermol@itam.nsc.ru
The material was received by the Editorial Board: 17.01.2017
The experimental investigation of the influence of the distributed blowing of heavy gas (sulfur hexafluoride of SF6) into the wall layer of supersonic flat-plate boundary layer (at free-stream Mach number M = 2) on the laminar-turbulent transition have been performed. For the first time experimentally it is shown that in case of such blowing there is a boundary-layer stabilization, and the laminar-turbulent transition is removed from the model leading edge.

Keywords:
compressible boundary layer, permeability, blowing, heavy gas, stability, transition. 
УДК 532.526

INFLUENCE OF HEAVY GAS BLOWING INTO THE WALL LAYER OF SUPERSONIC BOUNDARY-LAYER ON ITS TRANSITION
References: Lysenko V. I., Smorodsky B. V., Ermolaev Yu. G., Gaponov S. A., Kosinov A. D., Semionov N. V., Yatskikh A. A. INFLUENCE OF HEAVY GAS BLOWING INTO THE WALL LAYER OF SUPERSONIC BOUNDARY-LAYER ON ITS TRANSITION. Siberian Journal of Physics . 2017, vol. 12, no. 1. P. 50–56. (in Russ.). DOI: 10.54362/1818-7919-2017-12-1-50-56