热流固耦合动态边界理论研究

A theoretical study on the dynamic boundary of hot fluid—solid coupling seepage

基于Biot理论,推导了考虑热渗流作用的热流固耦合问题的基本方程,建立了本问题的热渗流模型,给出了所考虑问题的热流体动力弥散分布概率及各项系数的表达式,进一步建立了微压热液体位移场,讨论了热流体动力弥散因素对多孔介质边界的影响,建立了描述多孔介质的动态边界方程,针对不同的外部因素,分别建立了4种边界模型,并进行了动态模拟.

On the basis of Biot theory,the basic equations on the hot fluid—solid coupling seepage are derived,and the mathematical model describing the thermal seepage is established.The dynamic dispersion distributing probability formula of the hot fluid and its coefficient expressions are presented.The displacement field of micro-pressure hot fluid is established,and the effect of the dynamic dispersion of the hot fluid on the boundary of porous media is discussed,and the equations for describing the dynamic boundary of porous media are established.In accordance with different outer factors,four boundary models and their dynamic simulations are presented.