کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660930 1458121 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical simulation for mass transfer through the porous membrane of parallel straight channels
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
A numerical simulation for mass transfer through the porous membrane of parallel straight channels
چکیده انگلیسی

In this paper, by adopting a “half-channel” model, a mass exchange process (presented in the therapy of hemodialysis) between two opposite running flows is numerically simulated. The flows are confined inside channels and separated by intercalary porous membranes. In the simulation, two types of flows, channel flow and ultra-filtration flow, are physically described, respectively, by Navier–Stokes equations and Kedem–Katchalsky (K–K) equations. By further adopting “SimpleR” algorithm, the velocity fields inside the channels are determined, meanwhile, solute mass distributions are predicted by concentration equation. The solid computation in this paper perfectly explored the process of hemodialysis, its results: (1) displayed the flow and solute distribution patterns inside channels; (2) described the ultra-filtration profiles along the surface of the porous membrane; and (3) disclosed an existent nano-scale reverse osmosis problem.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 53, Issues 11–12, May 2010, Pages 2404–2413
نویسندگان
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