Open AccessImpact of a thermally stratified energy source on the bow shock wave and aerodynamic characteristics of a body
Author(s) -
O. A. Azarova,
O. V. Kravchenko
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1891/1/012025
Subject(s) - mechanics , shock wave , supersonic speed , aerodynamics , vortex , wedge (geometry) , bow shock (aerodynamics) , stratified flows , front (military) , physics , leading edge , geology , stratified flow , materials science , meteorology , turbulence , optics
This paper presents numerical modelling of a thermally stratified energy source’s effect on the supersonic flow past a body “double-wedge - plate”. A multiple generation of the Richtmyer-Meshkov instabilities was obtained. These instabilities cause almost complete destruction of the bow shock front inside the source area and form a new multi-vortex mechanism of affecting the streamlined body. The defining parameters of the effect of stratified and homogeneous energy sources with equal values of total energy are analysed. The possibility of a significant decrease in the temperature at the vertex of the double-wedge and in the average front surface temperature due to the redistribution of source energy between layers has been established.