کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
153069 | 456518 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Variable-property effect on liquid flow and heat transfer in microchannels
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Numerical investigation was conducted in an effort to verify the variable-property effect of thermally developing flow in microchannel cooling passages. Temperature-dependent viscosity and thermal conductivity of liquid water were taken into account in theoretical modeling. Two-dimensional simulation was performed for low Reynolds number flow in a 100 μm single channel subjected to localized heat flux and different inlet temperatures. The fundamental characteristics of flow and thermal re-development were carefully analyzed. The heat transfer enhancement was described by defining the peak value and location of relative Nusselt number distribution as ÎNu%max and Xmax. Strong non-linear interaction mechanism prevailed in the correlation of ÎNu%max and Xmax due to high heat flux condition and dramatic rise of liquid temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 141, Issues 1â3, 15 July 2008, Pages 346-353
Journal: Chemical Engineering Journal - Volume 141, Issues 1â3, 15 July 2008, Pages 346-353
نویسندگان
J.T. Liu, X.F. Peng, B.X. Wang,