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基于构形理论,以质量积耗散率最小为优化目标,在构造体总体积和高渗透性材料一定的条件下,对基于环形高渗透性通道的圆柱形构造体进行传质构形优化,得到无量纲平均压差最小的圆柱体构造体最优构形。结果表明:存在最佳高渗透性通道尺寸比(D_1/D_0)_(opt)和最佳圆柱形构造体径高比(H_0/H_1)_(oo)使得圆柱形构造体的无量纲平均压差取得二次最小值。增加单元体数目n有助于提高圆柱形构造体的传质性能;当n>5时,其传质性能提高幅度很小,此时增加单元体数目对其传质性能改善不明显。基于质量积耗散率最小所得到的圆柱形构造体最优构形能够降低构造体的平均传质压差,改善其整体传质性能。
Based on the configuration theory and the minimization of the mass-product dissipation rate, the mass transfer configuration optimization of the cylindrical structure based on the annular hyper-permeable channel under the conditions of the total volume of the structure and the high-permeability material is optimized. The optimal configuration of cylinder structure with the smallest dimensionless average pressure difference is obtained. The results show that there is the best dimensionless average pressure of cylindrical structure (D_1 / D_0) _ (opt) and the best cylindrical structure diameter ratio (H_0 / H_1) _ (oo) Poor to obtain the second minimum. Increasing the number n of unit cells can improve the mass transfer performance of the cylindrical structure. When n> 5, the improvement of mass transfer performance is small. At this time, increasing the number of unit cells has no obvious improvement on the mass transfer performance. The optimal configuration of the cylindrical structure based on the minimization of the mass product dissipation rate can reduce the average mass transfer pressure difference and improve the overall mass transfer performance of the structure.