Fluid-structure interaction in natural convection heat transfer in an oblique cavity with a flexible oscillating fin and partial heating

A. I. Alsabery, M. A. Sheremet, M. Ghalambaz, A. J. Chamkha, Ishak Hashim

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Unsteady natural convection in a differentially heated oblique cavity with a flexible oscillating heat-conducting fin mounted on the bottom adiabatic wall is studied numerically by using the finite element method. The right inclined wall is kept at a constant low temperature, while the left one is adiabatic with a local isothermal heater, the fin is heated isothermally from the basis. The heat-conducting elastic fin is located in the central part of the bottom adiabatic wall. The Galerkin weighted residual finite element method with the aid of the Arbitrary Lagrangian-Eulerian (ALE) procedure is used in the numerical analysis. The developed computational code was validated comprehensively using a grid independency test, and numerical data of other authors. The governing parameters of this study are the dimensionless time (10-8⩽t≤3.5), thermal conductivity ratio between the heat-conducting fin and working medium (1⩽Kr≤1000), non-dimensional Young's modulus (109⩽E≤1012), oscillating amplitude (0.01⩽A⩽0.1), left wall heater length (0.1⩽H≤0.9), and the inclination angle of tilted walls (-45⩽ϕ⩽45). The obtained results revealed an essential effect of the flexible oscillating heat-conducting fin on the fluid flow and heat transfer inside the oblique cavity.

Original languageEnglish
Pages (from-to)80-97
Number of pages18
JournalApplied Thermal Engineering
Volume145
DOIs
Publication statusPublished - 25 Dec 2018

Fingerprint

Fins (heat exchange)
Fluid structure interaction
Natural convection
Heat transfer
Heating
Finite element method
Numerical analysis
Flow of fluids
Thermal conductivity
Elastic moduli
Hot Temperature
Temperature

Keywords

  • Flexible oscillating heat-conducting fin
  • Local isothermal heater
  • Natural convection
  • Oblique cavity

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Industrial and Manufacturing Engineering

Cite this

Fluid-structure interaction in natural convection heat transfer in an oblique cavity with a flexible oscillating fin and partial heating. / Alsabery, A. I.; Sheremet, M. A.; Ghalambaz, M.; Chamkha, A. J.; Hashim, Ishak.

In: Applied Thermal Engineering, Vol. 145, 25.12.2018, p. 80-97.

Research output: Contribution to journalArticle

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AU - Chamkha, A. J.

AU - Hashim, Ishak

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