کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
661942 | 1458188 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Unsteady turbulent heat transfer of mixed convection in a reciprocating circular ribbed channel
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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: Unsteady turbulent heat transfer of mixed convection in a reciprocating circular ribbed channel Unsteady turbulent heat transfer of mixed convection in a reciprocating circular ribbed channel](/preview/png/661942.png)
چکیده انگلیسی
The SIMPLE-C scheme is used to solve the mass, momentum, energy conservation equations and turbulent k–ε equations with a two-layer model near wall for a fluid past a reciprocating circular ribbed channel when changing Reynolds number (4250–10,000), Grashof number (0–400,000,000), pulsating number (0–9.3) and cooling mediums. The average time-mean Nusselt number for the reciprocating circular ribbed channel can be 45–182% larger than that for the equivalent stationary smooth channel. The heat transfer enhancement produced by buoyancy for the reciprocating circular ribbed channel decreases as the pulsating number increases. The oscillating amplitude of Nusselt number with crank angle in the oil-cooling is less than in the water-cooling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 48, Issue 13, June 2005, Pages 2708–2721
Journal: International Journal of Heat and Mass Transfer - Volume 48, Issue 13, June 2005, Pages 2708–2721
نویسندگان
Horng-Wen Wu, Chin-Teck Lau,