Research status and future prospect of the development and spread law of spill fire in tunnel
In the tunnel environment,the combustion dynamics of spill fires,encompassing phenomena such as flame bifurcation fu-sion,oscillations,and tilting,coupled with the fluidic behavior of diffused fuel layers and heat transfer interactions with the tunnel's bottom wall and flame smoke,exhibit significant complexity and instability.These complexities heighten the risk of igniting neigh-boring combustible materials,posing significant threats to human life and property safety.The present study delves into a compara-tive analysis of the diffusion,combustion characteristics,flame height,oscillations,heat radiation models,heat transfer mecha-nisms,smoke dissemination,and ceiling temperature escalation models of oil spill fires in both open spaces and tunnel environ-ments.Notably,it highlights the need for further research to re-fine our understanding of flame oscillations,heat radiation mod-els,and other flame behavioral patterns.By elucidating the heat transfer mechanisms,unsteady combustion dynamics,and smoke dispersal dynamics of spill fires,this work provides vital theoreti-cal and technological underpinnings for the prevention and emer-gency response strategies against tunnel flow fires.
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维普
