کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7058011 1458076 2013 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical study on natural convection in an inclined square enclosure with a circular cylinder
ترجمه فارسی عنوان
یک مطالعه عددی بر روی حرارت طبیعی در یک محفظه مربعی محوری با یک سیلندر دایره ای
کلمات کلیدی
پودر طبیعی محفظه تله، شعاع سیلندر دایره ای،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This study examined numerically the natural convection induced by a temperature difference between a cold outer inclined square enclosure and a hot inner circular cylinder. A two-dimensional solution for natural convection was obtained using the finite volume method with second-order accuracy and the immersed boundary method to handle efficiently the inner circular cylinder within an inclined square enclosure. The present study considered the effects of the following parameters on fluid flow and heat transfer in an enclosure: Rayleigh number from 103 to 106, the dimensionless cylinder radii from 0.1 to 0.3 and tilted angle of the enclosure from 0° to 45°. The results showed that the distribution of isotherms, streamlines, local and surface-averaged Nusselt numbers are determined by the combined effects of convection and the distance between the cylinder and walls of the enclosure, which are a function of the Rayleigh number, dimensionless cylinder radius and tilted angle of the enclosure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 66, November 2013, Pages 295-314
نویسندگان
, , , , ,