가열물체가 있는 평행평판사이의 대류유동에 관한 수치적 연구

An analysis is made of the Lully developed laminar flow and heat transfer in a parallel flat plate with heated rectangular block arrays to investigated the influence of bonyancy force. The shrouds is considered as adiabatic, while the heated block surface transmit a uniform rate of heat flux per unit axial length. The governing equations for velocity and temperature are solved by SIMPLE(Semi-lmplicit Method Pressure Linked Equation)algorithm. Detailed velocity and temperature fields and overall heat transfer on wide range of Rayleigh number and various aspect ratios of heated rectangular blocks are computed. The result show that bouyancy leads to a significient enhancement in heat transfer along with a smaller increase in pressure drop, with the great enhancement found when the aspect ratio is 3.0.