کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
657944 | 1458075 | 2013 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical simulation of a crossflow moving porous bed using a thermal non-equilibrium model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This study investigates the influence of physical properties on heat transfer between solid and fluid phases in a cross flow moving porous bed, in which the fluid moves with longitudinal and transversal components with respect to the permeable bed. For simulating flow and heat transfer, a two-energy equation model is applied in addition to a mechanical model. Transport equations are discretized using the control-volume method and the system of algebraic equations is relaxed via the SIMPLE algorithm. The effects of flow properties, such as Reynolds number, solid-to-fluid velocity ratio, permeability and porosity, as well as the effects of thermal properties, namely solid-to-fluid thermal capacity and solid-to-fluid thermal conductivity ratio, are analyzed. The numerical results show that the Reynolds number affects strongly the flow behavior and for high values of the solid-to-fluid velocity ratio, solid-to-fluid thermal capacity ratio and solid-to-fluid thermal conductivity ratio, there is a decrease in temperature gradients everywhere in the domain and the fluid temperature reaches higher values mainly in the symmetry region of the channel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 67, December 2013, Pages 311-325
Journal: International Journal of Heat and Mass Transfer - Volume 67, December 2013, Pages 311-325
نویسندگان
Ana C. Pivem, Marcelo J.S. de Lemos,