캐비티를 가진 수평채널 내에서의 혼합대류에 관한 연구

Abstract

Mixed convective heat transfer phenomena are studied in a channel with rectangular cavity heated from below. The parameters governing the problem are the Reynolds number (0≤Re≤50), the Rayleigh number (0≤Ra≤2×10^(5), the Prandtl number (0.7≤Pr≤909), the aspect ratio (0.5≤AR=W/D≤2) and the angle of inclination (0˚≤θ≤90˚). Finite volume method was employed for the discretization and PISO algorithm was used for calculating pressure term. Detailed velocity and temperature fields are computed, and various result for the streamline, isotherms and the heat transfer rates in terms of the average Nusselt number are presented and discussed for different parametric values.