Mechanism of solute and thermal characteristics in a casson hybrid nanofluid based with ethylene glycol influenced by soret and dufour effects

Muhammad Bilal Hafeez, Wojciech Sumelka, Umar Nazir, Hijaz Ahmad, Sameh Askar

Research output: Contribution to journalJournal articlepeer-review

Abstract

This article models a system of partial differential equations (PDEs) for the thermal and solute characteristics under gradients (concentration and temperature) in the magnetohydrodynamic flow of Casson liquid in a Darcy porous medium. The modelled problems are highly non-linear with convective boundary conditions. These problems are solved numerically with a finite element approach under a tolerance of 10−8 . A numerical algorithm (finite element approach) is provided and a numerical procedure is discussed. Convergence is also observed via 300 elements. Simulations are run to explore the dynamics of flow and the transport of heat and mass under parametric variation. To examine the impact of a temperature gradient on the transport of mass and the role of a concentration gradient on the transport of heat energy, simulations are recorded. Remarkable changes in temperature and concentration are noted when Dufour and Soret numbers are varied.

Original languageEnglish
Article number6818
JournalEnergies
Volume14
Issue number20
DOIs
StatePublished - 1 Oct 2021
Externally publishedYes

Keywords

  • Convergence
  • Finite element method
  • Heat energy
  • Mass transfer
  • Numerical algorithm

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