多孔颗粒固定床层中颗粒内部溶质大分子受力的分析  

On Transfer of Solute Macromolecule in Interior of Porous Particle for Fixed Bed

作　　者：高永祥[1] 何志敏[1] 李大鸣[1] 

机构地区：[1]天津大学 天津 300072

出　　处：《应用力学学报》2001年第1期45-52,共8页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金资助项目基金号!29676030

摘　　要：利用以Brinkman方程为基础的有效介质方法和一般的点阵模型，研究固定床层中多孔颗粒内部溶质大分子的传递，在考虑颗粒内部空隙度和整个床层空隙度双重影响下，得到球形溶质大分子在多孔介质内部的受力公式，进而研究其在多孔颗粒固定床层中的传递现象。In this paper the transfer of solute macromolecules in the interior of porous particles is investigated for a fixed bed with an effective medium approach based on Brinkman equation and the swarm model. A drag formula of spherical solute located in the center in spherical porous particle imbedded in an extemal porous medium is obtained, taking into account of both its internal pemeability ki and the matrix of effective permeability ke of external porous medium contained in whole fixed bed. Then the transferring phenomena of solute is tried to be researched out further.

关 键 词：多孔介质 溶质大分子 点阵模型 等效介质 固定床层 受力 

分 类 号：TQ051.14[化学工程] O357.3[理学—流体力学]