Detonation onset following shock wave focusing

被引：87
|
作者：
Smirnov, N. N. [1 ,2 ,4 ]
Penyazkov, O. G. [3 ,4 ]
Sevrouk, K. L. [3 ]
Nikitin, V. F. [1 ,4 ]
Stamov, L. I. [1 ,2 ,4 ]
Tyurenkova, V. V. [2 ,4 ]
机构：
[1] Moscow Lomonosov State Univ, Moscow 119992, Russia
[2] Russian Acad Sci, Sci Res Inst Syst Anal, Moscow 117218, Russia
[3] Natl Acad Sci Belarus, Lykovs Heat & Mass Transfer Inst, P Brovki 15, Minsk, BELARUS
[4] LLC Ctr Numer Modeling, Moscow 124482, Russia
来源：
ACTA ASTRONAUTICA | 2017年 / 135卷
基金：
俄罗斯基础研究基金会;
关键词：
Combustion; Detonation; Shock waves; Experiment; Kinetics; Simulation; Parallel computing; HYDROGEN; SIMULATION; DEFLAGRATION; MIXTURE; SYSTEMS;
D O I：
10.1016/j.actaastro.2016.09.014
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The aim of the present paper is to study detonation initiation due to focusing of a shock wave reflected inside a cone. Both numerical and experimental investigations were conducted. Comparison of results made it possible to validate the developed 3-d transient mathematical model of chemically reacting gas mixture flows incorporating hydrogen - air mixtures. The results of theoretical and numerical experiments made it possible improving kinetic schemes and turbulence models. Several different flow scenarios were detected in reflection of shock waves all being dependent on incident shock wave intensity: reflecting of shock wave with lagging behind combustion zone, formation of detonation wave in reflection and focusing, and intermediate transient regimes.
引用
收藏
页码：114 / 130
页数：17
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