Nonsimilarity solutions for mixed convection from vertical surfaces in porous media: variable surface temperature or heat flux
作者： J.C. Hsieh , T.S. Chen , B.F. Armaly
DOI: 10.1016/S0017-9310(05)80059-6
关键词: Buoyancy 、 Thermodynamics 、 Mechanics 、 Materials science 、 Natural convection 、 Porous medium 、 Combined forced and natural convection 、 Forced convection 、 Heat flux 、 Nusselt number 、 Dimensionless quantity 、 Mechanical engineering 、 Condensed matter physics 、 Fluid Flow and Transfer Processes
摘要: Abstract Nonsimilarity solutions for mixed convection from a vertical flat plate embedded in porous medium are reported two surface heating conditions: variable wall temperature (VWT) and heat flux (VHF) of the power-law form. The entire regime is divided into regions. One region covers forced dominated other one free regime. governing equations first transformed dimensionless form by nonsimilar transformation then solved finite-difference scheme. Four nonsimilarity parameters introduced. Rax/Pex Rax*/Pex3/2 characterize effect buoyancy forces on VWT VHF cases, respectively; while Pex/Rax Pex/Rax*2/3 flow respectively. Numerical results both conditions presented. Correlation local average Nusselt numbers also
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