OP-II-3

PP-II-5The turbulence characteristics were calculated on the basis of a two-parametermodel with the use of balance equations for the turbulent kinetic energy and the rateof its dissipations.For each fraction of droplets, the equations of conservation of momentum werewritten. The drag law was defined by Klyachko’s formula [3]. To calculate the dropletstrajectories, we supplemented the above-given system by the kinematics relations.The equations for the gas phase were solved numerically by the finite-volumemethod [4]. In accordance with this method, the finite-difference equations werederived by integrating the differential equations over the control volumes containingnodes of the finite-difference grid. Equations for liquid phase were integrated byfourth-order Runge-Kutta method.The closed physicomathematical model and results of numerical study of spraypyrolysis synthesis being presented in the report permit to determine the morphologyand size distribution function of alumina particles.This work was carried out within the framework of realization of the Federal targetprogram “The Scientific and scientific-pedagogical staff of innovative Russia” for2009–2013 with a support of State contract from 04.08.2009 “Developing andprocessing of the high-energy filled polymer compositions”.References[1]. G.L. Messing, S.-C. Zhang and C.V. Jayanthi. Ceramic Powder Synthesis by Spray Pyrolysis //J. Am. Ceram. Soc. 1993. Vol. 76, No 11. – p.p. 2207–2726.[2]. V.A. Arkhipov, O.V. Matvienko, and V.F. Trofimov. Combustion of Sprayed Liquid Fuel in a SwirlFlow // Combustion, Explosion, and Shock Waves. 2005. Vol. 41, No 2. – p.p. 140-150.[3]. L.S. Klyachko. Equation of Motion of Dust Particles in Dust Traps // Otoplen. Ventil. 1983. № 4. –p.p. 27–29.[4]. S.V. Patankar. Numerical Heat Transfer and Fluid Flow, MacGraw Hill, New-York, 1980.344