Eddy diffusion is apparent in the dissipation of smoke from a smokestack.
从烟囱里冒出的烟消散中我们可以明显地看到涡流扩散。
Analyses and compares the diffusion regularity of fire smoke with and without screen doors when fire occurs in the middle or head of the train separately.
分析比较了地铁列车中部和头部分别发生火灾情况下有、无屏蔽门时烟气的扩散规律。
To improve the realistic effect of smoke simulation, a real time smoke shadow simulation algorithm based on direct projection and diffusion is proposed.
为了提高烟雾模拟的真实感，提出了一种基于直接投射扩散的烟雾阴影实时生成算法。
Establishes the physical model and mathematical model of fire smoke diffusion in underground railway. Simulates the temperature field and concentration distribution of fire smoke using CFD method.
建立了地铁火灾中烟气运动的物理模型和数学模型，采用CFD方法模拟了地铁火灾时的温度场和烟气浓度分布。
The simulation result indicates that screen doors play a remarkable role in restricting the diffusion of fire smoke.
模拟结果表明屏蔽门对于火灾烟气的扩散有显著的抑制作用。
The forming, diffusion and momentum transfer of the red phosphorus smokescreens and the kinetic characteristic of the different scale particles in smoke cloud are researched in this paper.
本文研究了赤磷基烟幕云团的形成、扩散规律和动量输运，及其烟幕云团中不同尺度微粒的运动性质。
Comparison result show that on the isothermal medium atmosphere condition, the numerical simulation result of smoke diffusion and smoke concentration is accurate.
结果表明在等温中性的大气条件下，该模式对烟幕的扩散及浓度计算准确。
In certain locations where atmospheric turbulence is lacking, smoke originating at the surface of the earth is dissipated largely by molecular diffusion.
在某些气体湍流缓慢的区域中，地球表面产生的烟雾很大一部分是通过分子扩散而消散的。
In certain locations where atmospheric turbulence is lacking, smoke originating at the surface of the earth is dissipated largely by molecular diffusion.
在某些气体湍流缓慢的区域中，地球表面产生的烟雾很大一部分是通过分子扩散而消散的。
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