کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7055141 | 1458041 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Numerical investigation on conjugate heat transfer of evaporating thin film in a sessile droplet
ترجمه فارسی عنوان
بررسی عددی انتقال حرارت گرمادهی کنسانتره فیلم نازک تبخیری در یک قطره نشسته
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کلمات کلیدی
تبخیر، فیلم نازک، قطره، انتقال حرارت متصل، شعاع،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
The conjugate heat transfer in the evaporating thin films of sessile water droplets with different radii (RÂ =Â 0.0707, 0.1414, and 0.707Â mm, respectively) is numerically investigated based on an augmented Young-Laplace model and the kinetic theory-based expression for mass transport across a liquid-vapor interface by considering the evaporation at the liquid-vapor interface, vapor transport in air, and the liquid domain. The results show that the percentage contribution of the thin film region to the overall heat transfer increases significantly with decreasing droplet size. The thin film contribution becomes somewhat smaller when increasing the superheats that are smaller than 10Â K, although the variation of the thin film contribution seems to be less sensitive to superheat than droplet size. Meanwhile, the thin film contribution increases when the surface wettability improves, and its variation is relatively less sensitive to wettability than both droplet size and superheat. This work is helpful for further understanding of the mechanisms influencing the heat transfer in the thin films of liquid droplets.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 101, October 2016, Pages 10-19
Journal: International Journal of Heat and Mass Transfer - Volume 101, October 2016, Pages 10-19
نویسندگان
Zhenchen Zheng, Leping Zhou, Xiaoze Du, Yongping Yang,