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Transport Phenomena in Nano and Micro Scales، جلد ۲، شماره ۱، صفحات ۱۴-۲۸
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Single Walled Carbon Nanotube Effects on Mixed Convection heat Transfer in an Enclosure: a LBM Approach |
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| چکیده انگلیسی مقاله |
The effects of Single Walled Carbon Nanotube (SWCNT) on mixed convection in a cavity are investigated numerically. The problem is studied for different Richardson numbers (0.1-10), volume fractions of nanotubes (0-1%), and aspect ratio of the cavity (0.5-2.5) when the Grashof number is equal to 103. The volume fraction of added nanotubes to Water as base fluid are lowers than 1% to make dilute suspensions. The Study presents a numerical treatment based on LBM to model convection heat transfer of Carbon nanotube based nanofluids. A theoretical model is used for effective thermal conductivity of the nanofluid containing Carbon nanotubes. This model covers different phenomena of energy transport in nanofluids. Also, an analytical model is applied for effective viscosity of the nanofluid which includes the Brownian effect and other physical properties of nanofluids. Results show that adding a low value of SWCNT to the base fluid led to significant enhancement of convection heat transfer. Make a comparison between the obtained results and other published papers shows that Carbon nanotubes enhances the rate of convection heat transfer better than other nanoparticles. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
m جعفری |
mechanical engineering department, university of technology babol, babol, i.r. iran
m فرهادی |
mechanical engineering department, university of technology babol, babol, i.r. iran
k صدیقی |
mechanical engineering department, university of technology babol, babol, i.r. iran
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| نشانی اینترنتی |
http://tpnms.usb.ac.ir/article_1410_baa90fb224b1acce6c16608cf04bcc9a.pdf |
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| زبان مقاله منتشر شده |
en |
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