Fluid-structure interaction analysis of entropy generation and mixed convection inside a cavity with flexible right wall and heated rotating cylinder

A. I. Alsabery, F. Selimefendigil, Ishak Hashim, A. J. Chamkha, M. Ghalambaz

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The current work concentrates on the transient entropy generation and mixed convection due to a rotating hot inner cylinder within a square cavity having a flexible side wall by using the finite element method and arbitrary Lagrangian-Eulerian formulation. Effects of various relevant parameters like Rayleigh number (104⩽Ra⩽107), angular rotational velocity (-1⩽Ω⩽1), dimensionless elasticity modulus (1012⩽E⩽1015) on the convective heat transfer characteristics and entropy generation rates are analyzed for dimensionless time 10-8⩽τ⩽3.5. It is observed that various complex shaped wall deformations are established depending on the non-dimensional elastic modulus of the flexible right wall and cylinder rotation direction. The local and average Nusselt numbers rise with Ra and secondary peaks in the local Nusselt number are established for lower values of Ra. The local heat transfer along the hot cylinder does not change for the case of clockwise rotation of the heated cylinder even if there is a wall deformation in the positive x-direction. The highest average heat transfer and global entropy generation rates are achieved for the case of counter-clockwise rotation of the circular cylinder and for lower values of the flexible wall deformation.

Original languageEnglish
Pages (from-to)331-345
Number of pages15
JournalInternational Journal of Heat and Mass Transfer
Volume140
DOIs
Publication statusPublished - 1 Sep 2019

Fingerprint

rotating cylinders
Mixed convection
Fluid structure interaction
convection
Entropy
entropy
Nusselt number
Heat transfer
cavities
fluids
interactions
Circular cylinders
heat transfer
counter rotation
Elasticity
Elastic moduli
convective heat transfer
Finite element method
circular cylinders
Rayleigh number

Keywords

  • Elastic wall
  • Entropy generation
  • Finite element method
  • Rotating cylinder
  • Unsteady mixed convection

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

Fluid-structure interaction analysis of entropy generation and mixed convection inside a cavity with flexible right wall and heated rotating cylinder. / Alsabery, A. I.; Selimefendigil, F.; Hashim, Ishak; Chamkha, A. J.; Ghalambaz, M.

In: International Journal of Heat and Mass Transfer, Vol. 140, 01.09.2019, p. 331-345.

Research output: Contribution to journalArticle

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AU - Ghalambaz, M.

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