- NUMERICAL SOLUTION FOR WOOD DRYING ON ONE-DIMENSIONAL GRID
- Lee, Yong-Hun ; Kang, Wook ; Chung, Woo-Yang ;
- Journal of the Korea Society for Industrial and Applied Mathematics, volume 11, issue 1, 2007, Pages 95~105
Abstract
A mathematical modeling for the drying process of hygroscopic porous media, such as wood, has been developed in the past decades. The governing equations for wood drying consist of three conservation equations with respect to the three state variables, moisture content, temperature and air density. They are involving simultaneous, highly coupled heat and mass transfer phenomena. In recent, the equations were extended to account for material heterogeneity through the density of the wood and via the density variation of the material process, capillary pressure, absolute permeability, bound water diffusivity and effective thermal conductivity. In this paper, we investigate the drying behavior for the three primary variables of the drying process in terms of control volume finite element method to the heterogeneous transport model on one-dimensional grid.