کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
654237 | 885235 | 2010 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Maximum density effects on buoyancy-driven convection in a porous trapezoidal cavity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Maximum density effects on buoyancy-driven convection in a porous trapezoidal cavity Maximum density effects on buoyancy-driven convection in a porous trapezoidal cavity](/preview/png/654237.png)
چکیده انگلیسی
A numerical study of the steady buoyancy-induced flow and heat transfer in a trapezoidal cavity filled with a porous medium saturated with cold water at a temperature around 4 °C has been performed. The analysis has been done for a cavity with different aspect ratios ranging from 0.25 to 0.75 and Rayleigh numbers ranging from 100 to 1000 using a finite-difference method. It is found that four cells are formed inside the cavity independent of the Rayleigh number and aspect ratio. The existence of buoyancy force reversal resulting from the maximum density effect, leads to a reduction in the strength of the convective flow and also the average Nusselt number.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Communications in Heat and Mass Transfer - Volume 37, Issue 4, April 2010, Pages 401–409
Journal: International Communications in Heat and Mass Transfer - Volume 37, Issue 4, April 2010, Pages 401–409
نویسندگان
Yasin Varol, Hakan F. Oztop, Ioan Pop,