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Double-diffusive flow in a porous right-angle trapezoidal enclosure with constant heat flux
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  • Zafar Khan,
  • W.A. Khan,
  • Muhammad Qasim,
  • Min Du
Zafar Khan
Sichuan University
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W.A. Khan
Prince Mohammad Bin Fahd University
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Muhammad Qasim
COMSATS Institute of Information Technology
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Min Du
Sichuan University
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A computation analysis is performed to study double-diffusive natural convection in a right-angle trapezoidal cavity packed with a porous medium. The horizontal top and bottom boundaries are insulated and impermeable. The vertical left sidewall is kept at a constant heat flux and high concentration, whereas the temperature and concentration of the mixture at the inclined sidewall are held at lower temperatures and lower concentration. The dimensionless nonlinear system is solved by employing finite difference method along Successive Under Relaxation technique. The findings are compared and validated with the existing literature for the Darcy flow driven through a single buoyancy effect (difference in density is only due to temperature variations) in a porous square enclosure. The numerical results are expressed in the form of dimensionless temperature, concentration, streamlines, isotherms and iso-concentrations, local and average Nusselt and Sherwood numbers. It is demonstrated that the Rayleigh number and buoyancy parameter enhance both surface heat and concentration rates.

Peer review status:ACCEPTED

20 Oct 2020Submitted to Mathematical Methods in the Applied Sciences
21 Oct 2020Submission Checks Completed
21 Oct 2020Assigned to Editor
26 Oct 2020Reviewer(s) Assigned
11 Jan 2021Review(s) Completed, Editorial Evaluation Pending
08 Feb 2021Editorial Decision: Revise Major
07 Mar 20211st Revision Received
07 Mar 2021Submission Checks Completed
07 Mar 2021Assigned to Editor
10 Mar 2021Reviewer(s) Assigned
10 Mar 2021Review(s) Completed, Editorial Evaluation Pending
15 Mar 2021Editorial Decision: Accept