Thermal Behavior of a Horizontal Hollow Tile Submitted To a Sinusoidal Excitation
Journal Title: American journal of Engineering Research - Year 2018, Vol 7, Issue 3
Abstract
This work presents a numerical study, in a transient state, of the thermal behavior of a horizontal alveolar structure filled with air and vertically heated by a sinusoidal excitation applied to its superior surface. The lower surface is maintained to a constant temperature. On the vertical sides, a periodicity condition is imposed (repetitively condition). The coupled heat transfers by conduction, natural convection and by radiation is taken account. The Boussinesq approximation is valid. The system of equations is solved by the finite difference method based on the control volume approach and the SIMPLE algorithm. The response of the structure in term of the variation of the internal and external heat flux and the maximal stream function are compared for different considered parameters of the applied temperature. The average values of the frequency and the amplitude of these grandeurs are analyzed. The effect of the emissivity on the behavior of the nature flow and on the heat flux is also discussed.
Authors and Affiliations
Thami Ait-Taleb, Mourad Najjaoui, Abdelhalim Abdelbaki, Zaki Zrikem
Keywords
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