کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7153416 | 1462474 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of heat transfer by natural convection of nanofluids in a partially heated cylindrical enclosure
ترجمه فارسی عنوان
بررسی انتقال حرارت توسط کانواسیون طبیعی نانوفیلدیها در یک محفظه استوانه ای گرم به مقدار زیاد
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کلمات کلیدی
پودر طبیعی محوطه استوانه ای افقی، حرارت جزئی، حجم محدود نانو سیال،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
چکیده انگلیسی
In this research, a numerical study was carried out on heat transfer by natural convection of two nanofluids in a partially heated horizontal cylindrical enclosure. The partial heating occurs through the lower side of the enclosure at a constant temperature. The length of the heat source is changed from 5% to 25% of the total perimeter of the enclosure. The two side parts of the enclosure are maintained at a low constant temperature, each one of them has a length of 25% of the total perimeter. The top part of the enclosure is considered as adiabatic, it has a length of 25% of the total perimeter. The two nanofluids used are Cu-water and TiO2-water with a volume fraction of nanoparticles being varied in the range of 0-0.05. The Rayleigh number was varied in the interval 103 to 106. The results obtained were summarized in the form of correlation equations of the average Nusselt number as a function of the heated length, the Rayleigh number and volume fraction for both types of nanofluids.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Case Studies in Thermal Engineering - Volume 11, March 2018, Pages 135-144
Journal: Case Studies in Thermal Engineering - Volume 11, March 2018, Pages 135-144
نویسندگان
Mabrouk Guestal, Mahfoud Kadja, Mai Ton Hoang,