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.
建立定子三维温度场的物理模型和数学模型。
Physical model and mathematical model of 3D stator temperature field were established.
本文分析了径向进气风扇的工作原理，在流场显示和测量的基础上，建立了流场的物理模型和数学模型。
In this paper, the working principle of cross flow fan are analysised. On the basis of display and measurement of the flow field, the authors set up the physical pattern and mathematical pattern.
本文分析了径向进气风扇的工作原理，在流场显示和测量的基础上，建立了流场的物理模型和数学模型。
In this paper, the working principle of cross flow fan are analysised. On the basis of display and measurement of the flow field, the authors set up the physical pattern and mathematical pattern.
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