Transient burning of non-charring materials in boundary layer diffusion flames

被引:11
|
作者
Tahsini, A. M. [1 ]
机构
[1] Aerosp Res Inst, Tehran, Iran
关键词
Diffusion flame; extinction; numerical simulation; oscillation; regression rate; response; solid fuel; transient burning; SOLID ROCKET MOTOR; FUEL RAMJET COMBUSTION; PILOTED IGNITION; PROPELLANTS; PMMA; INSTABILITY; EXTINCTION; DEPRESSURIZATION; RADIATION; GRAVITY;
D O I
10.1177/0954410013478357
中图分类号
V [航空、航天];
学科分类号
08 ; 0825 ;
摘要
In this article, solid fuel transient burning behavior under oxidizer gas flow is numerically investigated. It is accomplished by the analysis of regression rate responses to the imposed sudden and oscillatory variations at inflow properties. The conjugate problem is considered by simultaneous solution of flow and solid-phase governing equations to compute the fuel regression rate. The advection upstream splitting method is used as the flow computational scheme in a finite volume method. The ignition phase is completely simulated to obtain the exact initial condition for response analysis. The results show that the transient burning effects that lead to the combustion instabilities and intermittent extinctions could be observed in solid fuels such as solid propellants.
引用
收藏
页码:586 / 593
页数:8
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