Double-distribution-function discrete Boltzmann model for combustion

doi:10.1016/j.combustflame.2015.11.010

CORC > 北京大学 > 工学院

	Double-distribution-function discrete Boltzmann model for combustion
	Lin, Chuandong ; Xu, Aiguo ; Zhang, Guangcai ; Li, Yingjun
刊名	COMBUSTION AND FLAME
	2016
关键词	Discrete Boltzmann model Combustion Detonation Nonequilibrium effects MACH NUMBER COMBUSTION BINARY-FLUID SYSTEMS DIFFUSION COMBUSTION COMPRESSIBLE FLOWS HEAT RATIO LATTICE SIMULATION FLAME DETONATION SHOCK
DOI	10.1016/j.combustflame.2015.11.010
英文摘要	A 2-dimensional discrete Boltzmann model for combustion is presented. Mathematically, the model is composed of two coupled discrete Boltzmann equations for two species and a phenomenological equation for chemical reaction process. Physically, apart from the macroscopic behaviors described by a reactive Navier-Stokes model, this model presents also more information on the thermodynamic nonequilibrium. This model adopts 16 discrete velocities. It works for both subsonic and supersonic combustion phenomena with flexible specific heat ratio. To discuss the physical accuracy of the coarse-grained model for nonequilibrium behaviors, three other discrete velocity models are used for comparisons. Numerical results are compared with analytical solutions based on both the first-order and second-order truncations of the distribution function. It is confirmed that the physical accuracy increases with the increasing moment relations needed by nonequlibrium manifestations. Furthermore, compared with the single distribution function model, this model can simulate more details of combustion. (C) 2015 The Combustion Institute. Published by Elsevier Inc. All rights reserved.; Foundation of LCP; National Natural Science Foundation of China [11475028, 11202003, 11574390, 41472130, 11374360]; opening project of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology) [KFJJ14-1M]; Open Project Program of State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y4KF151CJ1]; National Basic Research Program of China [2013CBA01504]; SCI(E); EI; ARTICLE; Xu_Aiguo@iapcm.ac.cn; lyj@aphy.iphy.ac.cn; 137-151; 164
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437749]
专题	工学院
推荐引用方式 GB/T 7714	Lin, Chuandong,Xu, Aiguo,Zhang, Guangcai,et al. Double-distribution-function discrete Boltzmann model for combustion[J]. COMBUSTION AND FLAME,2016.
APA	Lin, Chuandong,Xu, Aiguo,Zhang, Guangcai,&Li, Yingjun.(2016).Double-distribution-function discrete Boltzmann model for combustion.COMBUSTION AND FLAME.
MLA	Lin, Chuandong,et al."Double-distribution-function discrete Boltzmann model for combustion".COMBUSTION AND FLAME (2016).