Numerical and Experimental Pore Network Study on Slowly Isothermal Drying of Real Porous Media

Taking the sand bed as the simulated object, a pore network model for drying of real porous media is developed by applying the invasion percolation theory and transport process principle, which fused the physical parameters of sand bed, such as porosity, pore mean diameter, pore size distribution, into the model parameters. The experiment and simulation results indicated that this model could explain the drying process of sand bed well. The throat size distribution has a great effect on the drying process.