[讨论]火灾烟气的流动规律--英国伦敦2012年奥运会筹办地突发大火

qdruikang

说的不准确，意思不是很明确，请多指正！

qdruikang

难道没有人能明白，还是我没有说清楚，
请大家看图说话吧？

woodland

应该与当地大气层内温度分布有关。

qdruikang

可以看出一个问题，虽然做流体人很多，但是在用流体知识解释自然现场的毕竟是少数！
理论和实践结合才能产生价值阿，伙计们！！！！！！！

ycchen100

1)影响这个高度和展向宽度的因素都是哪些阿? balance of buoyance and weight of smoke particles will decide how high the particles can climb. The growing width is decided by the diffusion equation. You can consider the mean flow equation only (neglect the fluctuation terms) as the behavious is pretty much like a plume.
2) Obviously the horizontal mean flow is higher on the upper surface than the lower surface to allow more/less diffusive topological pattern below/above. Not a turbulence effect.

qdruikang

the upper';S answer sounds a little reasonale,it gives me some more hint to think the flow phenomenon .but i still hope better and better answen  will be listed down.