کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
658289 | 1458082 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Natural convection of cold water near its density maximum in an elliptical enclosure containing a coaxial cylinder
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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: Natural convection of cold water near its density maximum in an elliptical enclosure containing a coaxial cylinder Natural convection of cold water near its density maximum in an elliptical enclosure containing a coaxial cylinder](/preview/png/658289.png)
چکیده انگلیسی
A numerical study of natural convection heat transfer of cold water near its density maximum from a heated cylinder to its cooled coaxial elliptical enclosure is performed using finite volume method. The analysis is done for different Rayleigh number ranged from 103 to 106, density inversion parameter from 0 to 1, aspect ratio from 0.1 to 0.7, and elliptical ratio from 0 to 0.9 to investigate the effects of these parameters on flow and heat transfer characteristics. In addition, the effect of inclination angle is examined as well by turning the enclosure in the clockwise direction. When the stable flow transits to the unstable flow, the mechanism of oscillations is also discussed. Detailed analysis results for the distribution of streamlines, isotherms and Nusselt number are presented and an empirical heat transfer correlation was deduced within an acceptable uncertainty in this paper.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 60, May 2013, Pages 170-179
Journal: International Journal of Heat and Mass Transfer - Volume 60, May 2013, Pages 170-179
نویسندگان
Yu-Peng Hu, You-Rong Li, Xiao-Feng Yuan, Chun-Mei Wu,