کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4994341 1458034 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural convection heat transfer combined with melting process in a cubical cavity under the effects of uniform inclined magnetic field and local heat source
ترجمه فارسی عنوان
انتقال حرارتی طبیعی همراه با فرآیند ذوب در یک حفره مکعبی تحت تاثیر میدان مغناطیسی شیب یکنواخت و منبع حرارت محلی
کلمات کلیدی
ذوب، پودر طبیعی میدان مغناطیسی یکنواخت، حفره حفره ای، منبع گرما، توابع پتانسیل بردار، نتایج عددی،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Natural convective heat transfer combined with melting in a cubical cavity filled with a pure gallium under the effects of inclined uniform magnetic field and local heater has been studied numerically. The domain of interest is an enclosure bounded by two isothermal opposite vertical surfaces of low constant temperature and adiabatic other walls. A heat source of constant temperature is located on the bottom wall. An inclined uniform magnetic field affects the melting process inside the cavity. The governing equations formulated in dimensionless vector potential functions, vorticity vector and temperature with corresponding initial and boundary conditions have been solved using implicit finite difference method of the second-order accuracy. The effects of the Hartmann number, magnetic field inclination angle and dimensionless time on streamlines, isotherms, profiles of temperature and velocity as well as mean Nusselt number at the heat source surface have been analyzed. The obtained results revealed that a growth of magnetic field intensity reflects the convective flow suppression and heat transfer rate reduction. High values of Hartmann number homogenize the liquid flow and heat transfer inside the melting zone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 108, Part A, May 2017, Pages 1057-1067
نویسندگان
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