Exact solutions for drying with coupled phase change in a porous medium with a heat flux condition on the surface

E.A. SANTILLAN MARCUS – D.A. TARZIA

COMPUTATIONAL AND APPLIED MATHEMATICS

Sociedade de Matematica Aplicada e Computacional

Lugar: Rio de Janeiro; Año: 2003 vol. 22 p. 293 - 311

Exact solutions for the problem of drying with coupled phase change in a porous medium with a heat flux condition on $x=0$ of the type $-q_{0}/sqrt{%au },$ with $q_{0}>0$, for any value of the Luikov number $L_{u}$ is obtained. This solution can be only obtained when $q_{0}$ verifies a certain inequality. Besides, for large Luikov number (more precisely, $L_{u}>dfrac{1%}{varepsilon K_{0}+1}$), we obtain that the temperature distribution $t_{2}$ reaches to a minimum value which is smaller than its initial temperature or limit value reached at $+infty $