Influence of compressibility effect on supersonic combustion modeling

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	Influence of compressibility effect on supersonic combustion modeling
	Chen L ; Yao W(姚卫); Fan XJ(范学军)
	2019
会议日期	August 19, 2019 - August 22, 2019
会议地点	Indianapolis, IN, United states
英文摘要	Large eddy simulation is applied to study the compressibility effect on supersonic combustion modeling, through adding compressibility corrections into the original model, including reaction rate correction (RRC), and subgrid stress correction (SSC). Two correction results and the result without compressibility effect correction (WCEC) are compared with the experimental results, including the fields of velocity, composition, and temperature and the lift-off height of flame. The results show that the effect of two compressibility correction models on the lift-off height of flame can be ignored, whereas the width of time-averaged velocity field, the peak value of the composition field, and the reaction zone length of time-averaged temperature can be affected by the two compressibility correction models. And the more obvious differences can be foud in the instantaneous fields of velocity and tempetature. A probe is located at (X/D=32.3, Y/D=0, Z/D=1.1) to measure the instantaneous temperature of three cases (WCEC, RRC, SSC). The results reveal that the combustion field has a periodic characteristic, and the SSC has an effect on it. © 2019, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
会议录	AIAA Propulsion and Energy Forum and Exposition, 2019
语种	英语
URL标识	查看原文
ISBN号	9781624105906
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/85100]
专题	力学研究所_高温气体动力学国家重点实验室
作者单位	1.Key Laboratory of High-Temperature Gas Dynamics, Institute of Mechanics, CAS, Beijing, 100190, China 2.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Chen L,Yao W,Fan XJ. Influence of compressibility effect on supersonic combustion modeling[C]. 见:. Indianapolis, IN, United states. August 19, 2019 - August 22, 2019.