Numerical modeling of detonation combustion of hydrogen-air mixtures in a convergent-divergent nozzle

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作者
Yu. V. Tunik
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来源
Fluid Dynamics | 2010年 / 45卷
关键词
convergent-divergent nozzle; supersonic flow; gas ignition; detonation combustion; chemical kinetics; thermodynamic properties of components; thrust; shock waves;
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摘要
The flow of igniting hydrogen-air mixtures entering an axisymmetric convergent-divergent nozzle at a supersonic velocity is considered. A possibility of stabilizing detonation combustion is numerically investigated at different freestream Mach numbers with account for nonuniform distribution of hydrogen concentration at the nozzle entry. The investigation is performed on the basis of the two-dimensional gasdynamic Euler equations for a multicomponent reacting gas. A detailed model of chemical reactions is used. The calculated thrust is compared with the drag of a conical housing containing the supersonic nozzle considered.
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页码:264 / 270
页数:6
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