کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
654885 885281 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heat transfer by radiation and natural convection through a vertical annulus embedded in porous medium
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Heat transfer by radiation and natural convection through a vertical annulus embedded in porous medium
چکیده انگلیسی

The effect of radiation and natural convection in a saturated porous medium embedded in a vertical annular cylinder has been investigated. Finite element method has been used to solve the governing equations. Influence of aspect ratio (A) and radius ratio (R) on Nusselt number is presented. The effect of radiation on heat transfer behavior is discussed. Results for two limiting cases of vertical cylinder and vertical plate embedded in saturated porous medium are presented. It is seen that average Nusselt number (N¯u) increases significantly with radiation parameter (Rd). N¯u attains maximum value at an aspect ratio of around one. N¯u always decreases with decrease in radius ratio.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Communications in Heat and Mass Transfer - Volume 33, Issue 4, April 2006, Pages 500–507
نویسندگان
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