Numerical simulation of the process of heat and moisture transfer in porous materials

In the papers [1-3] within the framework of a nonlinear diffusion equation the process of transport of a moisture in porous materials is investigated. However, the initial model leave outs dependence of transport of a moisture on temperature. In the paper [4] the cross-coupling of transport of heat and moisture in porous materials is investigated. The simulation of these processes is yielded on the basis of system of three nonlinear equations: heat conduction equation for temperature of a wet porous material and diffusion equations for concentrations of air and water. In these equations all thermal parameters of a porous material, dry air, water and vapors of water are entered. Thus temperature of all indicated constituents of medium supposed to be identical.