IDDES of a Dual-Mode Ethylene Fueled Cavity Flameholder with an Isolator Shock Train
IDDES of a Dual-Mode Ethylene Fueled Cavity Flameholder with an Isolator Shock Train
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DOI：
10.2514/6.2013-116
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发表时间：
2013-01
期刊：
影响因子：
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通讯作者：
P. Cocks;C. Bruno;J. Donohue;M. Haas
中科院分区：
文献类型：
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作者：
P. Cocks;C. Bruno;J. Donohue;M. Haas
Since hydrocarbon fuels are the likely fuel of choice for scramjet propulsion in the near term, the capability to accurately predict dual-mode cavity flameholder combustors must be demonstrated in order for computational methods to play a role in the design and understanding of such technology. The accurate prediction of isolator shock trains and hydrocarbon combustion present a significant challenge. This paper applies the IDDES hybrid RANS-LES method to the simulation of a high speed ethylene fueled cavity flameholder with an isolator shock train. The strong impact of implicit time step and inflow turbulence on the solution is demonstrated, with particular emphasis on shock train prediction. Areas for future improvement are highlighted with reacting simulations utilizing simple descriptions of the ethylene chemistry.
