Comparison of a Structured-LES and an Unstructured-DES Code for Predicting Combustion Instabilities in a Longitudinal Mode Rocket
作者： Matthew E. Harvazinski , Doug G. Talley , Venke Sankaran
DOI: 10.2514/6.2015-1608
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摘要: Abstract : Summary: Both LES and DES area capable of simulating self-excited combustion instability. Agreement between the simulations experiments for unstable case was good. The marginally stable proved more difficult Cyclic Heat release captured. had a delayed reignition, likely responsible higher amplitudes. captured along with reignition event. Some differences in predictions are due to grids. No apparent winner, both approaches have strengths weaknesses.
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