采用物理图像分析，建立简单的数学模型，求解并获得了有限空间气溶胶浓度场函数表达式，并进行相应的数值分析。
The mathematic model is set up by using physics image analysis, the expression of aerosol concentration field in limited space is derived, and the correspondent numerical analysis is .
根据热型连铸技术原理，建立了热型连铸凝固过程一维稳态温度场的物理、数学模型。
Based upon the principle of thermal-die continuous casting process, the physical and mathematical models of one-dimensional steady-state heat transfer for temperature field are established.
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。
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.
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