دانلود رایگان مقاله انگلیسی جریان انتقال حرارت ابر همرفتی نانوسیال در پوشش تمام موجدار متوسط پر منفذ - الزویر 2018

عنوان فارسی
جریان انتقال حرارت ابر همرفتی نانوسیال در پوشش تمام موجدار متوسط پر منفذ
عنوان انگلیسی
Convective heat transfer flow of nanofluid in a porous medium over wavy surface
صفحات مقاله فارسی
0
صفحات مقاله انگلیسی
5
سال انتشار
2018
نشریه
الزویر - Elsevier
فرمت مقاله انگلیسی
PDF
کد محصول
E9066
رشته های مرتبط با این مقاله
مهندسی مکانیک، مهندسی انرژی
گرایش های مرتبط با این مقاله
مکانیک سیالات، تاسیسات حرارتی و برودتی، تبدیل انرژی
مجله
Physics Letters A
دانشگاه
Department of Mathematics - COMSATS University Islamabad - Lahore Campus - Pakistan
کلمات کلیدی
نانو سیال، محیط متخلخل، انتقال همرفت، سطح موج دار
doi یا شناسه دیجیتال
https://doi.org/10.1016/j.physleta.2018.06.026
چکیده

abstract


In this letter, water base nanofluid flow over wavy surface in a porous medium of spherical packing beds is investigated. The copper oxides particles are taken into account. These properties are rehabilitated when fluid interacts with porous walls. For porous medium, Dupuit–Forchheimer model; an extension of Darcy’s law model is utilized. The natures of velocity and temperature profiles of nanofluid are discussed graphically whereas the values of convection heat transfer coefficient in the presence of different nanoparticles concentrations in porous medium is presented in tabular form. The obtained results illustrate that convection heat transfer is improved by nanoparticles concentration but reduces when fluid attract to pores structured medium. On the other hand, when particles are added in fluid, convection heat transfer rate is improved but flow velocity is declined.

نتیجه گیری

5. Conclusion


The present work examines fluid flow and heat transfer in Non-Darcian flow phenomena over wavy surface. Two main consequence are observed as follows


• It is observed that flow speed is improvement when porosity is increased while convection heat transfer rate is reduced due to declination in thermal conduction.


• On the other hand, when particles are added in fluid, convection heat transfer rate is improved but flow velocity is declined.


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