Numerical Study on Premixed Methane-Air Deflagration in Closed Cylindrical Vessel
In this paper the premixed methane-air explosion in a closed vessel was simulated through premixed combustion model. The model is based on the LES method to turbulence and the gradient method to burning rate. A structured hexahedron grid is used for numerical simulation. To decrease the CPU time the solution-adaptive mesh refinement is used. The simulated pressure history is in agreement with experimental data from the literature. The simulated result show that peak flame velocity occurs at fix position and peak flame velocity with end ignition is 50％ faster than peak flame velocity with central ignition.
methane-air explosion deflagration premixed combustion flame velocity LES
BI Mingshu DONG Chengjie
School of Chemical Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1225-1229
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）