Interaction of supersonic heterogeneous streams with solid body surface

1Polezhaev, Yu.V, 1Mikhatulin, DS, 2Frolov, GA
1Joint Institute for High Temperatures, RAS, Moscow, Russia
2I.N. Frantsevich Institute for Material Science Problems, NAS of Ukraine, Kyiv, Ukraine
Kosm. nauka tehnol. 2010, 16 ;(6):57-63
Publication Language: Russian
Some physical processes during erosive destruction are considered for a single particle impact and for repeated actions of particles on a destroyed surface. It is shown that there are basic differences between single and repeated collisions and because of this they can not be directly compared by any physical parameter. Some models for erosive destruction of materials are presented. Three sites of erosive destruction are determined. As the velocity of a discrete particle impact on an obstacle and a particle’s diameter increase, either the erosive destruction or adhesive sticking is realized on a streamline surface.
Keywords: adhesive sticking, erosive destruction, heterogeneous streams
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