Numerical simulation of a multicomponent mixing layer with solid particles
A.P. Makasheva, A.Zh. Naimanova
nstitute of Mathematics and Mathematical Modeling MES RK, Almaty, Kazakhstan
Keywords: двухфазный поток, твердые частицы, многокомпонентный газ, уравнения Навье-Стокса, эйлерово-лагранжев метод, two-phase flow, solid particles, multicomponent gas, Navier-Stokes equations, Euler-Lagrange method
Abstract
The work is devoted to the numerical simulation of a supersonic plane mixing layer of multicomponent gases in the presence of injection of particles at the interface of flows. An algorithm for solving the system of Navier-Stokes equations for the gas phase and the system of ordinary differential equations for solid particles based on the Eulerian-Lagrangian representation is proposed. It is assumed that the turbulent flow is quasi-two-dimensional and the solution of the an original system is produced by the 2D-DNS approach without using additional closure models of turbulence. A detailed study of the influence of the gas phase on the particles distribution and their capture with coherent structures is performed with the variance of Mach numbers and particles injection locations The enhancing influence of the centrifugal force on the dispersion of particles is obtained with increase in the input Mach number. A quasi-equilibrium state with a gas flow of small particles is established.
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