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Natural Convection in a Square Cavity with Uniformly Heated and/or Insulated Walls Using Marker-and-Cell Method

  • B. Md. Hidayathulla Khan
  • K. Venkatadri
  • O. Anwar Bég
  • V. Ramachandra Prasad
  • B. Mallikarjuna
Original Paper
  • 47 Downloads

Abstract

In this paper, a numerical Harlow–Welch MAC (Marker and Cell) method is developed to investigate the unsteady free convection in lid-driven square cavity. The constant heat flux is considered over left wall and remaining walls are kept thermally insulated. The structure of thermal convection patterns analysed via streamline, vorticity, pressure and temperature contour plots. The influence of the thermo-physical parameters, Reynolds number (Re), thermal Grashof number (Gr) Prandtl number (Pr) and Peclét number (Pe = PrRe), on these distributions are described in detail. Validation of solutions with earlier studies is included. Mesh independence is also conducted. It is observed that an increase in Prandtl number intensifies the primary circulation whereas it reduces the heat transfer rate. Increasing thermal Grashof number also decreases heat transfer rates. Furthermore, the isotherms are significantly compressed towards the left (constant flux) wall with a variation in Grashof number while Peclét number is fixed. The study is relevant to solar collector heat transfer simulations and also crystal growth technologies.

Keywords

Lid driven enclosure Thermal convection MAC numerics Thermal Grashof number Prandtl number Solar collectors 

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Copyright information

© Springer (India) Private Ltd., part of Springer Nature 2018

Authors and Affiliations

  • B. Md. Hidayathulla Khan
    • 1
  • K. Venkatadri
    • 1
  • O. Anwar Bég
    • 2
  • V. Ramachandra Prasad
    • 1
  • B. Mallikarjuna
    • 3
  1. 1.Department of MathematicsMadanapalle Institute of Technology and ScienceMadanapalleIndia
  2. 2.Fluid Mechanics, Propulsion and Heat Transfer, Aeronautical and Mechanical Engineering Department, School of Computing, Science and Engineering, Newton BuildingUniversity of SalfordManchesterUK
  3. 3.Department of MathematicsBMS College of EngineeringBangaloreIndia

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