Journal
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
Volume 67, Issue 9, Pages 972-991Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10407782.2014.949152
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In the present study, natural convection in a two-dimensional porous right-angled triangular enclosure with one wavy wall is studied numerically. Three cases with one, two, and three undulations on the left wall are studied in this analysis. The stream function-vorticity equations are solved using finite-difference technique and a structured nonorthogonal body-fitted mesh is used for computations. The effect of Rayleigh number (Ra=10(3)-10(6)), Darcy number (Da=10(-4)-10(-2)) and undulations on the heat transfer, fluid flow, and entropy generation is investigated. It is found that average Nusselt number increases with Darcy number and number of undulations present on the left wall at fixed Darcy number.
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