Abstract
An incompressible smoothed particle hydrodynamics (ISPH) method is used to study the Soret and Dufour effects on MHD convective flow resulting from grooves in an open annulus inside a cavity filled with nanofluid. Lagrangian description of the partial differential governing equations were treated by ISPH method The square annulus contains six grooves and it is open on the top right side and bottom left side. The six uniform grooves in a square annulus have higher temperature T-h and concentration C-h than the walls of the annulus, in which the temperature is T-c and concentration is C-c. Impacts of the physical flow parameters on fluid flow, heat and mass transfer of nanofluid are presented graphically. The results reveal that the streamlines and velocity fields are concentrated at the outer side regions of the inner annulus. A decrease on Soret number with an increase in Dufour number lead to a decrease on both of the fluid flows intensity and concentration distributions. The applied magnetic field is active process for the fluid velocities only. (C) 2020 Elsevier B.V. All rights reserved.