Numerical Simulation of Duct-vented Gas Explosion

被引：5
|
作者：
Tang, Ping [1 ]
Jiang, Juncheng [1 ]
机构：
[1] Nanjing Univ Technol, Sch Urban Construct & Safety Engn, Nanjing 210009, Peoples R China
来源：
SECOND SREE CONFERENCE ON CHEMICAL ENGINEERING (CCE 2011) | 2011年 / 18卷
关键词：
Gas explosion; Ducted venting; Duct explosion; Double ducts; Numerical simulation; FLAME; PRESSURE; DYNAMICS;
D O I：
10.1016/j.proeng.2011.11.005
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Duct-vented gas explosion was simulated based on k-epsilon turbulence model and Eddy-Dissipation-Concept (EDC) model in this paper. Flame propagation process during venting was studied to analyze the mechanisms of the severer explosion severity compared with direct venting. Effect of vent duct quantity was also studied. It is shown that explosion in duct leads to the higher maximum reduced pressure (P-red); frictional drag and gas column inertia play minor roles in intensifying explosion violence; use of double ducts can reduce explosion severity. (C) 2010 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Society for Resources, Environment and Engineering
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页数：6
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