FORCED CONVECTION FROM AN ISOTHERMAL CIRCULAR CYLINDER PLACED IN A CROSS STREAM OF MICROPOLAR FLUID | ||||
| ERJ. Engineering Research Journal | ||||
| Article 6, Volume 28, Issue 4, October 2005, Page 375-384 PDF (911.1 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2005.70248 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| F. M. Mahfouz | ||||
| Mechanical Power Department, Faculty of Engineering, Menoufiya University, Shebin El-kom, Egypt | ||||
| Abstract | ||||
| This paper investigates forced convection associated with the cross-flow of micropolar fluids over a horizontal heated circular cylinder. The full conservation equations of mass, linear momentum, angular momentum and energy are solved to give the details of flow and thermal fields. Heat convection process are mainly influenced by Reynolds number, Prandtl number and material parameters of micropolar fluid. The Reynolds number is considered up to 200 while the Prandtl number is fixed at 0.7. The vortex viscosity is the only material parameter considered in this study and is selected in the range from 0 to 5. The study has shown that generally the mean heat transfer decreases as the vortex viscosity increases. The results have also shown that both the natural frequency of vortex shedding and the amplitude of oscillating lift force experience clear reduction as the vortex viscosity increases | ||||
| Keywords | ||||
| Micropolar fluid-cylinder-forced convection-vortex viscosity-vortex shedding | ||||
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