Natural Convection in Vertical Channels with Porous Media and Adiabatic Extensions
作者： Sergio Nardini , Assunta Andreozzi , Bernardo Buonomo , Oronzio Manca
DOI: 10.4028/WWW.SCIENTIFIC.NET/DDF.297-301.1432
关键词: Porous medium 、 Fluid dynamics 、 Materials science 、 Compressibility 、 Finite volume method 、 Mechanics 、 Natural convection 、 Darcy number 、 Thermodynamics 、 Laminar flow 、 Adiabatic process
摘要: A numerical investigation on natural convection in air a vertical heated channel, partially filled with porous medium, adiabatic extensions downward and collinear the plates is accomplished. The fluid flow assumed two-dimensional, laminar, steady state incompressible. material considered as homogeneous isotropic Brinkman-Forchheimer-extended Darcy model considered. finite-extension computational domain employed to simulate free-stream condition allows account for diffusive effects results are obtained using finite volume method by FLUENT. Results terms of wall temperature profiles presented evaluate main thermal geometrical parameters. determine decrease decreases increasing number. In full channels presents significant increase number decrease.
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