Propagation characteristics of turbulent deflagration in horizontal tunnel with lateral liquefied petroleum gas concentration variations
Tunnelling and Underground Space Technology(2022)
摘要
•The lateral concentration gradient in the tunnel distinctly affects the deflagration propagation.•Staged violent deflagration can be initiated by a suitable concentration gradient.•An excessive gas concentration gradient can hinder deflagration propagation.•A dual-zone deflagration flame propagation model is proposed.
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关键词
Deflagration,Premixed concentrations,Flame velocity,Horizontal tunnel,LPG
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