Journal of Theoretical
and Applied Mechanics

53, 3, pp. 519-530, Warsaw 2015
DOI: 10.15632/jtam-pl.53.3.519

Inclination angle implications for fluid flow and mixed convection in complex geometry enclosure-meshless numerical analyses

Mohammad Najafi, Mehdi Nikfar, Ali Arefmanesh
The meshless local Petrov-Galerkin (MLPG) method is extended to analyze the mixed convection and fluid flow in an inclined two-dimensional lid-driven cavity. The enclosure considered comprises two insulated vertical walls and a wavy bottom wall which is subjected to a higher constant temperature than its top counterpart, the sliding lid. For the proposed scheme, the stream function formulation with a weighting function of unity is employed. The simulation results reveal that the local Nusselt number increases with a clockwise increase in the inclination angle. Also, a decrease in the aspect ratio results in an increase in the hot wavy wall average Nusselt number.
Keywords: meshless, Petrov-Galerkin, mixed convection, rectangular cavity, wavy wall