Numerical Simulation of Buoyancy- Driven Laminar Flow Through An Air –Filled Isosceles Triangular Enclosure With A Differentially Heated Side Walls And An Adiabatic Bottom Wall

Abstract

Thermal And Flow Fields Due To Laminar Free Convection In An IsoscelesTriangular Enclosure Having Thick Conducting Sidewalls Have Been InvestigatedComputationally. Inclined Left And Right Side Walls Are Maintained AtIsothermal Hot And Cold Temperatures Respectively While The Bottom Wall IsConsidered Adiabatic. Problem Has Been Analyzed And The Non-DimensionalGoverning Equations Are Solved Using Finite Volume Approach And EmployingMore Nodes At The Fluid–Solid Interface. Triangular Enclosure Is Assumed ToBe Filled With An Air With A Prandtl Number Of 0.7. Rayleigh Number VariesFrom 103 To 106 Where The Flow And Thermal Fields Are Computed For VariousRayleigh Numbers. Consequently, It Was Observed That The Stream FunctionAnd Temperature Contours Strongly Change With High Rayleigh Number. TheStreamline And Isotherm Plots And The Variations Of The Average NusseltNumber At The Hot Left And The Cold Right Side Walls Are Also Presented. TheResults Explained A Good Agreement With Another Published Results.