MHD mixed convective stagnation-point flow of Eyring-Powell nanofluid over stretching cylinder with thermal slip conditions
| Autor: | Precious Sibanda, Hammed Abiodun Ogunseye, Hiranmoy Mondal |
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| Rok vydání: | 2019 |
| Předmět: |
Convection
Materials science 020209 energy Metals and Alloys General Engineering 02 engineering and technology Mechanics 021001 nanoscience & nanotechnology Physics::Fluid Dynamics Nanofluid Combined forced and natural convection Thermal radiation Heat generation Heat transfer 0202 electrical engineering electronic engineering information engineering Radiative transfer Magnetohydrodynamic drive 0210 nano-technology |
| Zdroj: | Journal of Central South University. 26:1172-1183 |
| ISSN: | 2227-5223 2095-2899 |
| Popis: | The optimal design of heating and cooling systems must take into account heat radiation which is a non-linear process. In this study, the mixed convection in a radiative magnetohydrodynamic Eyring-Powell copper-water nanofluid over a stretching cylinder was investigated. The energy balance is modeled, taking into account the non-linear thermal radiation and a thermal slip condition. The effects of the embedded flow parameters on the fluid properties, as well as on the skin friction coefficient and heat transfer rate, are analyzed. Unlike in many existing studies, the recent spectral quasi-linearization method is used to solve the coupled nonlinear boundary-value problem. The computational result shows that increasing the nanoparticle volume fraction, thermal radiation parameter and heat generation parameter enhances temperature profile. We found that the velocity slip parameter and the fluid material parameter enhance the skin friction. A comparison of the current numerical results with existing literature for some limiting cases shows excellent agreement. |
| Databáze: | OpenAIRE |
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