Process Safety and Environmental Protection 2018 DOI: 10.1016/j.psep.2018.05.026 View full text
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Ruipengyu Li, Weeratunge Malalasekera, Salah Ibrahim, Bo Liu

Abstract: Accidental gas explosions are a significant concern in process industries. In an explosion event, the promotion of flame acceleration due to turbulence generated from obstacles is responsible for many severe damages. This paper discusses the numerical evaluation and the mechanism of pressure rise in vented explosions in the presence of obstructions using computational fluid dynamics (CFD). The large eddy simulation (LES) technique is employed with a dynamic flame surface density (DFSD) in the combustion model …

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