Fire Plume in a Sharply Stratified Ambient Fluid

The present work analyses theoretically and numerically fire plumes evolving in a two-layer stratified environment. ambient fluid consists of lower cold (heavy) layer an upper warm (light) with sharp interface. plume is controlled by the heat release rate Q. Depending on density interface location, temperatures layers source conditions, can rise indefinitely or be captured stratification. To determine criterion between these two situations, theoretical model proposed. With this model, it found that trapping/escaping determined terms stratification parameter $$\varLambda > 0.88$$ . This $$\varLambda$$ function release, location also allows height to analytically. comparison numerical data shows excellent agreement. Finally, for practical purposes, we propose simplified correlation estimate trapped as height, rate.