本文主要是探討非牛頓流體與牛頓流體在多孔性介質中熱質量傳遞，以了解液體蒸發現象，數值方法是利用凱勒盒子法(box method) 將方程式降階特性。文中將探討問題有水平板與垂直平板在牛頓流體中非達西效應下液體蒸發、水平板與垂直平板在非牛頓流體中非達西效應下液體蒸發。
(1)當水平板與垂直平板在牛頓流體時：
　　水平板中達西項阻力 對於流場速度的影響是遠大於慣性效應 ，液體熱、質傳遞量則受慣性效應影響較大。水平板的液體蒸發率將隨著慣性效應逐漸變大而增加；但垂直平板時，流體蒸發率會隨著 增大而增加。
(2)當水平板與垂直平板在非牛頓流體時：
　　在水平板中流動指標N對速度場之影響較大於溫度場及濃度場。流體速度隨N及慣性效應的增加而增加。當增加N或是慣性效應均能提高液體蒸發效果。垂直平板方面，當流動指標較小在靠近壁面附近有較大速度分佈，同時也具有較佳的液體蒸發率。

　　This paper analyzes the problem of liquid evaporation with non-Darcian effects on forced convection and natural convection flow over a flat plate and vertical plate in an isotropic porous media under the non-Newtonian and Newtonian fluid. The nonlinear boundary layer equations with the effects of boundary, Darcian resistance, and inertial resistance were solved using Keller’s box method. The results show that
(1) When the Newtonian fluid in the flow:
In flat plate, the velocity distributions were affected by the Darcy resistance more than inertial effect but the latter have more affects to heat flux and the evaporation of liquid. In vertical plate, the evaporation of liquid increase with the increase of .
(2) When the non-Newtonian fluid in the flow:
In flat plate, the velocity and evaporation of liquid increases with the increase of the flow index N or the inertial effects. In vertical plate, the more near wall has the more big velocity when the flow index N was less. The less flow index N should be caused to the good evaporation of liquid.

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