Entropy Analysis in Mixed Convection MHD flow of Nanofluid over a Non-linear Stretching Sheet
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- MATIN Meisam HABIBI
- Mechanical Engineering department, Kermanshah University of Technology
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- NOBARI Mohammad Reza Heirani
- Mechanical Engineering Department, Amirkabir University of Technology
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- JAHANGIRI Pouyan
- Mechanical Engineering Department, University of British Columbia
説明
This article deals with a numerical study of entropy analysis in mixed convection MHD flow of nanofluid over a non-linear stretching sheet taking into account the effects of viscous dissipation and variable magnetic field. The nanofluid is made of such nano particles as SiO2 with pure water as a base fluid. To analyze the problem, at first the boundary layer equations are transformed into non-linear ordinary equations using a similarity transformation. The resultant equations are then solved numerically using the Keller-Box scheme based on the implicit finite-difference method. The effects of different non-dimensional governing parameters such as magnetic parameter, nanoparticles volume fraction, Nusselt, Richardson, Eckert, Hartman, Brinkman, Reynolds and entropy generation numbers are investigated in details. The results indicate that increasing the nano particles to the base fluids causes the reduction in shear forces and a decrease in stretching sheet heat transfer coefficient. Also, decreasing the magnetic parameter and increasing the Eckert number result in improves heat transfer rate. Furthermore, the surface acts as a strong source of irreversibility due to the higher entropy generation number near the surface.
収録刊行物
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- Journal of Thermal Science and Technology
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Journal of Thermal Science and Technology 7 (1), 104-119, 2012
一般社団法人日本機械学会・社団法人日本伝熱学会
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詳細情報 詳細情報について
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- CRID
- 1390282680222786304
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- NII論文ID
- 130002068983
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- BIBCODE
- 2012JJTST...7..104M
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- COI
- 1:CAS:528:DC%2BC38XjslOltbs%3D
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- ISSN
- 18805566
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可