کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661186 1458149 2008 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical study of natural convection in a square enclosure with a circular cylinder at different vertical locations
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
A numerical study of natural convection in a square enclosure with a circular cylinder at different vertical locations
چکیده انگلیسی
Numerical calculations are carried out for natural convection induced by a temperature difference between a cold outer square enclosure and a hot inner circular cylinder. A two-dimensional solution for unsteady natural convection is obtained, using the immersed boundary method (IBM) to model an inner circular cylinder based on the finite volume method for different Rayleigh numbers varying over the range of 103-106. The study goes further to investigate the effect of the inner cylinder location on the heat transfer and fluid flow. The location of the inner circular cylinder is changed vertically along the center-line of square enclosure. The number, size and formation of the cell strongly depend on the Rayleigh number and the position of the inner circular cylinder. The changes in heat transfer quantities have also been presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 7–8, April 2008, Pages 1888-1906
نویسندگان
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