کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7054142 1458016 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cascade-like and cyclic heat transfer characteristics affected by enclosure aspect ratios for low Prandtl numbers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Cascade-like and cyclic heat transfer characteristics affected by enclosure aspect ratios for low Prandtl numbers
چکیده انگلیسی
For low Prandtl-number fluids, heat-transfer characteristics under the influence of the aspect ratio for buoyancy-driven recirculating flows in rectangular enclosures (with left hot, right cold, top/bottom insulated walls) behave differently from those for high-Pr fluids. At Ra=106 and Pr=0.025, as the enclosure widens, time-averaged and hot-wall-spatially-averaged heat transfer first decreases, then cascades downward. Locally, heat transfer peaks at a few locations, and these peaks travel cyclically as time elapses. For completeness, the present study serves as a sequel of a previous high-Pr investigation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 124, September 2018, Pages 131-140
نویسندگان
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