Double-Diffusive Buoyancy and Marangoni Convection in a Hybrid Nanofluid Filled Cylindrical Porous Annulus

B. Kanimozhi, M. Muthtamilselvan, Qasem M. Al-Mdallal, Bahaaeldin Abdalla

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


This study investigates numerically the combined buoyancy and thermocapillary convection thermal and solutal transfer of Ag/Mgo-water hybrid nanofluid in a cylindrical porous enclosure with the impacts of Soret and Dufour. A discrete heater of finite size is positioned in the centre of the left interior wall. The cylindrical cavity exterior wall is supposed to be cool. The top and bottom horizontal boundaries including the unheated region of the interior wall are claimed to be adiabatic. The finite difference approach is used to solve the non-dimensional governing equations. Various graphs have been utilized in the current study to describe the nature of the fluid flow, temperature, and concentration behaviours. The analysis reveals that the Marangoni number performs better with lower buoyancy ratio and lower Lewis number values. The Le and Df are efficient in mass transport, while the ϕ and Sr are efficient in energy transfer.

Original languageEnglish
Article number17
JournalMicrogravity Science and Technology
Issue number2
Publication statusPublished - Apr 2022


  • Finite difference method
  • Heated baffle
  • Hybrid nanofluid
  • Natural convection

ASJC Scopus subject areas

  • Modelling and Simulation
  • General Engineering
  • General Physics and Astronomy
  • Applied Mathematics


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