Revue des matériaux et énergies renouvelables
Volume 4, Numéro 1, Pages 1-7
2020-12-15
Numerical Investigation Of Free Convection In Conical Annular Space With Discrete Heat Surface
Authors : Medebber Mohamed Amine . Ould Said Belkacem . Retiel Nourddine . Aissa Abderrahmane .
Abstract
Natural convection heat transfer in a vertical conical annular space with discrete heat sources is investigated numerically., The heating sources is maintained at the middle of the inner wall, while the top and bottom walls are considered adiabatic, the outer wall is kept at a lower temperature, and the non-heated parts of the horizontally wall are considered adiabatic. The steady-state continuity, Navier–Stokes and energy equations were discretized using the control volume method and solved numerically via the SIMPLER algorithm. The result shows that the discrete heat sources significantly altered the temperature distribution and the flow patterns. The results are plotted in streamlines and the isotherms as well as for different values of Rayleigh numbers and various boundary conditions in the annulus.
Keywords
Conical annular cavity ; Volume finite method ; Natural convection ; Discrete heating surface ; Numerical simulation
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