Ignition of fuel sprays by shock wave mathematical modeling and numerical simulation

被引：109

作者：

Smirnov, N. N. ^{[1
,2
]}

Betelin, V. B. ^{[1
,2
]}

Kushnirenko, A. G. ^{[2
]}

Nikitin, V. F. ^{[1
,2
]}

Dushin, V. R. ^{[1
,2
]}

Nerchenko, V. A. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Moscow 119992, Russia

[2] Russian Acad Sci, Sci Res Inst Syst Anal, Moscow 117218, Russia

来源：

ACTA ASTRONAUTICA | 2013年 / 87卷

基金：

俄罗斯基础研究基金会;

关键词：

Phase transition; Heat flux; Evaporation; Non-equilibrium; Diffusion; Mathematical simulation; NONEQUILIBRIUM DIFFUSION COMBUSTION; EVAPORATION; DETONATION; DROPLETS;

D O I：

10.1016/j.actaastro.2013.01.023

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

The paper presents the results of developing of physical and mathematical model making it possible to take into account the effect of droplets non-uniformity in space and size distribution on ignition conditions for fuel sprays. The influence of condensed phase volume fraction on ignition and combustion of sprays was studied, physical and mathematical models for multi-phase flows, mixture formation and combustion of liquid fuels based on solving Navier-Stokes equations for gas phase accounting for thermal and mechanical interaction with poly-dispersed droplets array. The problems of particulate phase dynamics are regarded accounting for the interaction with gas phase atomization, evaporation and combustion. It was shown that depending on droplet size distribution and aerosol cloud density different flow scenarios were possible. Several ignition zones could be formed behind incident shock wave depending on mixture properties and initiation parameters. The possibility of numerical simulation permitting variation of definite parameters only made it possible to explain this fact. (C) 2013 IAA. Published by Elsevier Ltd. All rights reserved.

引用

页码：14 / 29

页数：16

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