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Transport Phenomena in Nano and Micro Scales، جلد ۲، شماره ۲، صفحات ۱۱۸-۱۳۱
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| عنوان انگلیسی |
Study of Fluid Flow and Heat Transfer of AL2O3-Water as a Non-Newtonian Nanofluid through Lid-Driven Enclosure |
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| چکیده انگلیسی مقاله |
Flow field and heat transfer of a nanofluid, whose non-Newtonian behavior has been demonstrated in the laboratory, in a square enclosure have been numerically modeled and investigated. To estimate the viscosity of nanofluid, experimental data of Hong and Kim, 2012 have been used, and a new model has been proposed. Finally, the obtained results have been compared to those of Newtonian behavior. The results obtained by the numerical simulation indicate that the average Nusselt number with non-Newtonian behavior has a value less than the Newtonian behavior. Also for the case in which the nanofluid is non-Newtonian, the buoyancy force is often insignificant, and forced convection dominates. By adding the nanoparticles, the average Nusselt number for the non-Newtonian nanofluid increases, but for the Newtonian nanofluid, depending on the dominant of natural or forced convection in the flow, it decreases or increases, respectively. On the other hand, with increasing the Reynolds number, the heat transfer rate increases for both Newtonian and non-Newtonian fluid at any constant Grashof number, while with increasing of Grashof number at a given temperature difference and a constant Reynolds number, the heat transfer rate increases and decreases in Newtonian and non-Newtonian nanofluids, respectively. |
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| نویسندگان مقاله |
علی اکبر عباسیان آرانی | a a abbasian arani
mechanical engineering department, university of kashan, kashan, i.r. iran
سازمان اصلی تایید شده: دانشگاه کاشان (Kashan university)
غلامعلی شیخ زاده | g a
mechanical engineering department, university of kashan, kashan, i.r. iran
سازمان اصلی تایید شده: دانشگاه کاشان (Kashan university)
a قدیریان آرانی | ghadirian arani
mechanical engineering department, university of kashan, kashan, i.r. iran
سازمان اصلی تایید شده: دانشگاه کاشان (Kashan university)
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| نشانی اینترنتی |
http://tpnms.usb.ac.ir/article_1606_39e187362d6d9a79f50ccef6bfd8d950.pdf |
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| زبان مقاله منتشر شده |
en |
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