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Transient natural convection flow of a nanofluid over a vertical cylinder |
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| Authors: | Ali J Chamkha A M Rashad Abdelraheem M Aly |
| Institution: | 1. Manufacturing Engineering Department, The Public Authority for Applied Education and Training, Shuweikh, 70654, Kuwait 2. Department of Mathematics, Faculty of Science, South Valley University, Aswan, Egypt 3. Department of Mathematics, Faculty of Science, South Valley University, Qena, Egypt 4. Civil Engineering Department, Faculty of Engineering, Kyushu University, Fukuoka, Japan |
| Abstract: | An analysis is performed to study unsteady free convective boundary layer flow of a nanofluid over a vertical cylinder. The model used for the nanofluid incorporates the effects of Brownian motion and thermophoresis. The governing equations are formulated and a numerical solution is obtained by using an explicit finite-difference scheme of the Crank-Nicolson type. The solutions at each time step have been found to reach the steady state solution properly. Numerical results for the steady-state velocity, temperature and nanoparticles volume fraction profiles as well as the axial distributions and the time histories of the skin-friction coefficient, Nusselt number and the Sherwood number are presented graphically and discussed. |
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