کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7056656 1458057 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical study on temperature uniformity in a novel mini-channel heat sink with different flow field configurations
ترجمه فارسی عنوان
مطالعه عددی روی یکنواختی دما در یک کانال گرمایی جدید مینی کانال با تنظیمات مختلف میدان جریان
کلمات کلیدی
گرمای کم کانال، پیکربندی میدان جریان، شبکه مقاومت حرارتی، یکنواختی دما، کانال متغیر ارتفاع
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Temperature uniformity in a water-cooled mini-channel heat sink with different flow field configurations under high heating flux was numerically studied. A thermal resistance network model was established and the concept of variable-height channels was proposed to improve the temperature uniformity on the heating surface. The influence of flow field configurations on the flow distribution uniformity is firstly studied, and a circular turning constructal distributor was selected due to its best flow distribution uniformity and cooling performance. And then the effects of fluid velocity, heating area, substrate thickness and three novel channels on the temperature uniformity and thermal resistance were investigated. Result shows that for the heat sink with the circular turning distributor and variable-height channels, the temperature non-uniformity achieved on a 3 × 3 cm heating surface can be reduced to less than 1 K with the heat flux as high as 2 MW m−2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 85, June 2015, Pages 147-157
نویسندگان
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