高热流密度激光作用下含混多孔材料的传热传质分析

HEAT AND MASS TRANSFER ANALYSIS OF POROUS MATERIALS UNDER LASER IRRADIATION

建立了快速高热流密度激光作用下含湿多孔材料传热传质数学模型，并采用恰当的数值处理方法进行了数值计算。结果表明，快速高热流密度激光作用下含湿多孔材料的传热传质具有经典热质传递理论难以解释的超常效应－非傅立叶与非费克效应，且非费克效应比非傅立叶效应更明显，较高含湿量的材料在高热流密度激光作用下的非费克效应应予以足够重视。

Mathematical model of laser beam irradiates the surface of a water-containing porous materials is presented, and related numerical method is used to solve the equations. The results indicate that heat and mass transfer is different from the description of classical heat and mass transfer theories, non-Fickian effects is more obvious than non-Fourier effects and should be taken into account as higher power laser beam irritates the surface of higher moisture content materials.