Analysis of energy balance equation of hypervelocity particle in interaction zone with solid surface

Fluid, gas and plasma mechanics


Nikitin P. V.*, Tushavina O. V.**

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia



The presented work performs the analysis of energy balance equation in the interaction zone of hypervelocity heterogeneous stream with solid surface. The problem is solved analytically and aims at revealing the physical entity of the kinds of energies realized while interaction of a heterogeneous stream with a flat impediment. The necessity of solving such problem associated with the study of impact mechanism of «k-phase» when forming various functional coatings on the surfaces of low-temperature structures by high-speed heterogeneous flows. A particle temperature and the surface temperature in the impact area play decisive role when forming high-quality coatings on the surfaces of the structures. In this regard, one of the problems of the present work consists in determining the levels of the said temperatures.

In this work, we obtained the equation of energy balance in the impact area of high-speed particles and a hard surface. Solution of this equation allowed us to derive the relationship to calculate the instantaneous temperatures of the particle and the solid surface in the impact area.


heterogeneous stream, the impact mechanism of the particle-phase balance of energy, ethno functional coating, the deformation energy upon impact, the degree of deformation of particles, deformation of the substrate under high-velocity impact


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