کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
657265 1458062 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the multiple solutions of boiling fins with heat generation
ترجمه فارسی عنوان
در راه حل های چندگانه جوش با تولید گرما
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی

A numerical bifurcation analysis is carried out in order to determine the solution structure of pin fins subject to multi-boiling heat transfer with internal heat generation. The analysis reveals that a complex and interesting solution structure exists. In contrast to the case without heat generation where up to three solutions exist, a large number of solutions may emerge arranged in a nested series of cusp points and isolas as the internal heat generation rate increases. The increased number of multiplicities imposes a number of both monotonic and non-monotonic temperature distributions along the fin height and reversal of the heat flow is observed at certain operating conditions. The fin profile has a profound effect on the solution by either increasing or decreasing the number of the singular points depending on whether a cylindrical or a trapezoidal profile is utilized. A generalized and smooth boiling heat transfer coefficient has been adopted so the results are not restricted to a particular working fluid.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 80, January 2015, Pages 236–242
نویسندگان
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