Multi-Block DQM/RBF-DQ as a meshless model for numerical investigation of laminar flow and forced convection in a channel with two circular fins

摘要

This work presents a numerical algorithm based on the combination of the conventional differential quadrature, radial basis function-based differential quadrature and domain decomposition technique as a truly method. The computation domain is decomposed into several subdomains and compatibility of subdomains is satisfied by applying additional interface equations. After performing validation process for the proposed algorithm, it was used to investigate the laminar flow and heat transfer within a horizontal channel with two circular fins at its bottom wall. The results show the excellent performance of the proposed method in simulating flow and heat transfer. The studies also indicate that increasing the radius of the fins and distance between the two fins increase their convective heat transfer rate. However, the effect of the first parameter on the thermal performance is far greater.