Feed spacer mesh angle: 3D modeling, simulation and optimization based on unsteady hydrodynamic in spiral wound membrane channel
Feed spacer mesh angle: 3D modeling, simulation and optimization based on unsteady hydrodynamic in spiral wound membrane channel
复制标题
进料隔片啮合角度：基于螺旋缠绕膜通道非定常水动力的3D建模、仿真与优化
DOI：
10.1016/j.memsci.2009.07.001
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发表时间：
2009
影响因子：
9.5
通讯作者：
T. Murugesan
中科院分区：
文献类型：
--
作者：
K. K. Lau;M. A. Bakar;A. Ahmad;T. Murugesan
螺旋缠绕膜（SWM）通道中流体力学的基本知识对于理解膜界面浓差极化的形成至关重要。在本研究中，三维层流瞬态流体动力学建模方法被用来研究和优化的间隔网格角的SWM饲料间隔。根据模拟结果，得到了使有效浓度极化因子最小的最佳隔片啮合角α120β30。在此最佳网格角下，间隔件α120β30在中等程度的压力损失下也表现出最高的非稳态流体动力学幅度（靠近膜壁）。
Basic knowledge on the hydrodynamics in the spacer-filled spiral wound membrane (SWM) channel is vital for the understanding of the formation of concentration polarization at the membrane interface. In the present study, a 3D laminar transient hydrodynamics modeling approach was used to study and optimize the spacer mesh angle for the SWM feed spacer. Based on the simulated results, the optimal spacer mesh angle that yields the minimum effective concentration polarization factor, was found to be α120β30. Under this optimal mesh angles, spacer α120β30 also demonstrated the highest magnitude of unsteady hydrodynamics (which adjacent to the membrane wall) at a moderate degree of pressure loss.