کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
620574 882491 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural-convection heat and mass transfer from a vertical cone in porous media filled with nanofluids using the practical ranges of nanofluids thermo-physical properties
ترجمه فارسی عنوان
گرما و انتقال حرارت جابجایی طبیعی از یک مخروط عمودی در رسانه های متخلخل پر از نانوسیم ها با استفاده از محدوده عملیاتی خواص حرارتی فیزیکی نانو
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
چکیده انگلیسی
The present study aims to analyze the effects of Brownian motion and thermophoresis forces on the natural convection heat transfer of nanofluids around a vertical cone placed in a saturated porous medium. The range of non-dimensional parameters and the definition of two important parameters of heat and mass transfer are discussed. The results show that the range of Lewis number as well as Brownian motion and thermophoresis parameters and also the definition of the reduced Nusselt and Sherwood numbers, used in the previous analyses, should be reconsidered. In the present study, reasonable definitions of reduced Nusselt and Sherwood numbers have been proposed and discussed in details. In contrast with previous researches, the present results show that the heat transfer associated with migration of nanoparticles is negligible compared with heat conduction and convection mechanisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Research and Design - Volume 92, Issue 3, March 2014, Pages 447-452
نویسندگان
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