کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
668921 | 1458713 | 2016 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal performance analysis of hydromagnetic Al2O3-water nanofluid flows inside a concentric microannulus considering nanoparticle migration and asymmetric heating
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal performance analysis of hydromagnetic Al2O3-water nanofluid flows inside a concentric microannulus considering nanoparticle migration and asymmetric heating Thermal performance analysis of hydromagnetic Al2O3-water nanofluid flows inside a concentric microannulus considering nanoparticle migration and asymmetric heating](/preview/png/668921.png)
چکیده انگلیسی
Direction and intensity of nanoparticle migration are able to tune thermophysical properties of nanofluids to improve thermal performance of heat exchange equipment. In this paper, thermal performance of hydromagnetic alumina/water nanofluid inside a vertical microannular tube is investigated numerically considering different modes of nanoparticle migration. The model used for the nanofluid is able to consider nanoparticle migration originating from the thermophoresis and Brownian motion. In order to study the thermal performance, the figures of merit for different range of parameters including the ratio of Brownian motion to thermophoresis (NBT), slip parameter (λ), mixed convective parameter (Nr), Hartmann number (Ha), bulk mean nanoparticle volume fraction (ÏB), radii (ζ) and heat flux (ε) ratios are investigated in detail. It is revealed that increasing the slip velocity and magnetic field strength intensify the thermal performance, whereas increasing the ratio of inner wall to the outer wall radius, nanoparticle volume fraction, and heat flux ratio decrease it.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 109, November 2016, Pages 10-22
Journal: International Journal of Thermal Sciences - Volume 109, November 2016, Pages 10-22
نویسندگان
A. Malvandi, Amirmahdi Ghasemi, D.D. Ganji,