Laminar aiding and opposing mixed convection in a vertical channel with an asymmetric discrete heating at one wall

摘要

Detailed numerical simulations are carried out for aiding/opposing mixed convection in a rectangular channel with an asymmetric discrete heating. The governing equations were solved by the finite volume method using OpenFoam? open source code. Based on streamline patterns, temperature maps, velocity and thermal profiles, and Nusselt number evolution an extensive analysis on the effects of Richardson number in the range ?5 to +5 for both opposed and aided buoyancy on the fluid flow and heat transfer characteristics is presented and discussed.