Computational flow imaging ( cfi ) uses theoretical predictions of the interaction and transmission of optical waves through theoretical flowfield to generate digital pictures that simulate real observations . it was used to construct flow visualization corresponding to shadowgraph , schlieren , interferometric and planar laser induced fluorescence ( plif ) images . by providing a better insight into the flow physics and cfd code behavior , cfi is proving to be extremely useful to experimentally validate cfd codes 计算光学流动显示技术( computationalflowimaging - cfi )就是把数值计算( cfd )获得的流场中的物理场，经过与实验相同的计算光学(全息干涉、纹影、阴影、平面激光诱导荧光)的过程转换为所需的各个方向与试验流动显示图像相对应的计算流动图像。
Based on the review of coupling theory of porous media , a nonlinear mathematics mechanical model and the governing differential equation of the coupled problem of thermal - gas fluid - mechanical are derived from the theory of continuum mechanics and mixture theory . a constitutive equation of the porous media is obtained in the coupling processes 在全面系统的回顾与总结多孔介质多物理场耦合分析与模拟的研究成果的基础上，以混合物理论以及流体、应力、温度相互作用的机理为基础，建立温度场、渗流场、应力场三场耦合分析的非线性数学模型。
After comparing all kinds of universal finite element software , we choose this excellent multi - physical ansys software as our analyzing method . it is the multi - physical calculating process using flotran module structure analysis module and coupling field analyzing module . three kinds of target structure being studied most frequently are as calculated object 在分析比较通用的有限元软件ansys 、 mscnastran 、 abaqus 、 adinat ，以及通用计算流体力学与计算传热学方面软件phoenics后，选用多物理场的分析工具- ansys软件作为分析手段，应用其flotran模块、结构分析模块、耦合场分析功能，建立多物理场的分析思路;总结热工和物理方向研究较集中的三种靶区结构，进行多物理场的耦合计算，得到靶区的流场、压力场、温度场和应力场的分析结果。
