کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9692862 | 1458849 | 2005 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heat transfer in a twin-blow narrow channel with two opposite walls roughened by skewed ribs arranged in staggered manner
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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: Heat transfer in a twin-blow narrow channel with two opposite walls roughened by skewed ribs arranged in staggered manner Heat transfer in a twin-blow narrow channel with two opposite walls roughened by skewed ribs arranged in staggered manner](/preview/png/9692862.png)
چکیده انگلیسی
This experimental study performs the detailed heat transfer measurements over a skewed-rib roughened surface in a rectangular narrow channel with two equal-area flow entrances located on two adjacent edges of a channel-corner. This flow configuration allows for increasing the coolant-flow fed into the narrow channel without increasing the height of assembly in order to enhance the capacity of cooling duty for electronic chipsets. At a specified total coolant mass flow rate, four test scenarios, namely the single-blow from the side or upper entrance and the twin-blow with the coolant mass flow ratio of 1:1 or 2:1 between the side and upper blows are performed. A selection of full-field heat transfer distributions over the rib-roughened surface illustrates the manner by which the flow entry condition and the Reynolds number affect the local and spatially averaged heat transfers. With fixed total coolant consumptions, the twin-blow with the coolant mass flow ratio of 2:1 between the side and upper blows elevates the spatially averaged heat transfers to the levels of 150-180% of the single-blow references. A regression-type analysis is subsequently performed to develop the correlation of spatially-averaged Nusselt numbers over rib-roughened surface, which permits the effect of Reynolds number on heat transfer to be determined for four test scenarios.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 44, Issue 7, July 2005, Pages 694-708
Journal: International Journal of Thermal Sciences - Volume 44, Issue 7, July 2005, Pages 694-708
نویسندگان
S.W. Chang, K.F. Chiang, T.L. Yang, P.H. Chen,