A comprehensive investigation of acoustic power level in a moderate or intense low oxygen dilution in a jet-in-hot-coflow under various working conditions
作者： Seyed Mahmood Mousavi , Reza Kamali , Freshteh Sotoudeh , Reza Pourabidi , Nader Karimi
DOI: 10.1016/J.AST.2019.105339
关键词:
摘要: Abstract Reducing the level of noise emission is an important requirement in modern propulsion and power generation. This requires gaining a deeper understanding underlying physics identifying key parameters dominating generation combustion technologies. Thus, this paper investigates effect several working on moderate or intense low oxygen dilution (MILD) noise. A finite volume solver, GRI-Mech 2.11 with 247 reactions 49 species, k-e RNG turbulence model as well EDC are used to develop computational reactive flow, while fraction time scale constants set 3 1, respectively. After validating numerical method by comparison experimental data, MILD simulated under various conditions study emission. The results show that modifying inlet such changes species mass fractions, temperature, Reynolds number alter acoustic through variations heat release.
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