کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
661805 | 1458130 | 2009 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of rib height on heat transfer in a two pass rectangular channel (AR = 1:4) with a sharp entrance at high rotation numbers
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Blockage ratio effects on heat transfer in 1:4 AR channels with developing flow is experimentally determined. The blockage ratios (e/Dh) were 0.078 and 0.156. Reynolds numbers up to 40 K and rotational speeds up to 400 rpm were considered. The rotation number (Ro) and local buoyancy parameter (Box) were extended to 0.65 and 1.5, respectively. The entrance dominates over rotation on the trailing surface first pass. The leading surface is dominated by rotation. Rotation effects are reduced by the ribs and heat transfer is similar for both walls in the second pass. Rotation effects were similar for both blockage ratios. The correlations show that the buoyancy parameter is useful to predict heat transfer in the extended range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 52, Issues 19–20, September 2009, Pages 4635–4649
Journal: International Journal of Heat and Mass Transfer - Volume 52, Issues 19–20, September 2009, Pages 4635–4649
نویسندگان
Michael Huh, Yao-Hsein Liu, Je-Chin Han,