Thermosolutal natural convection energy transfer in magnetically influenced casson fluid flow in hexagonal enclosure with fillets

Abstract

Current disquisition is aimed to adumbrate thermosolutal convective diffusion transport in Casson fluid filled in hexagonal enclosure under effectiveness of inclined magnetic field. Partially iso-concentration and iso-temperature distributions at base wall of enclosure is provided along with incorporation of fillets at corners of flow domain. Governing formulation in 2D are expressed in a velocity-pressure, energy and concentration balance equations. Numerical computations are executed by employing COMSOL Multiphysics software based on finite element scheme. Domain discretization in manifested by performing hybrid meshing in view of 2D elements. Linear and quadric interpolating polynomials for pressure and other associated distributions are capitalized. Non-linearized discretization system is handled by non-linear solver renowned as PARADISO. Results and code validation is assured by performing comparison and grid convergence test respectively. The impact of flow concerning variables by considering wide ranges like Casson parameter (0.1≤β≤10), Rayleigh number (104≤Ra≤107), Hartmann number (20≤Ha≤80) and Lewis number (0.1≤Le≤10) on velocity, isothermal and isoconcentration fields are visualized through graphs and tables. Visualization about kinetic energy along with heat and mass transfer rates are disclosed through graphs and tables.

Keywords

• Double diffusive convection
• Casson fluid
• Hexagonal fillet enclosure
• Inclined MHD
• Heat transfer
• FEM