کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661266 1458157 2007 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Boundary conditions at a fluid–porous interface: An a priori estimation of the stress jump coefficients
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Boundary conditions at a fluid–porous interface: An a priori estimation of the stress jump coefficients
چکیده انگلیسی

The momentum transfer at the interface between a porous medium and an adjacent free fluid is investigated by introducing three different levels of description of the problem. This study focuses mainly on the up-scaling from the mesoscopic to the macroscopic level of description. An explicit relation between the jump parameters, the location of the discontinuous interface (macroscopic description) and the structure of the transition region (mesoscopic description) is obtained. This relation allows to explain the large sensitivity of the jump parameters to the location of the discontinuous interface observed in previous studies. It is shown that it is crucial to conserve exactly the forces in the up-scaling analysis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 17–18, August 2007, Pages 3422–3436
نویسندگان
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