Heat transfer enhancement in a striaght channel via transversly oscillating adiabatic circular cylinder

Bayram Celik, Ali Beskok, Mehrdad Raisee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Vortex shedding from a transversely oscillating circular cylinder confined in a channel and its effect on the wall heat transfer of a channel under constant heat flux wall boundary condition are studied by utilizing an arbitrary Lagrangian Eulerian formulation based on h/p finite element algorithm. The numerical method exhibits spectral accuracy and allows large mesh deformation in the computational domain. The simulations are performed at Re=100 for a fixed maximum cylinder displacement of 0.4 times the cylinder diameter. For all these cases, blockage ratio is equal to 1/3. The simulation results show that the vortex shedding from the cylinder increases the heat transfer levels significantly. The transverse oscillation of the cylinder creates strong vortices close to the walls which results in an effective heat transfer mechanism from the channel walls. Numerical simulation results, conducted for a wide range of cylinder excitation frequencies, show that the highest heat transfer enhancement is arisen for the cylinder oscillation to natural vortex shedding frequency ratio of 0.75.

Original languageEnglish
Title of host publicationInternational Conference on Computational Methods for Thermal Problems
EditorsNicola Massarotti, Perumal Nithiarasu
PublisherOfficine Grafiche Francesco Giannini & figli S.p.A.
Pages121-124
Number of pages4
ISBN (Print)9788874314591, 9788874318285
Publication statusPublished - 2009
Externally publishedYes
Event1st International Conference on Computational Methods for Thermal Problems, THERMACOMP 2009 - Naples, Italy
Duration: 8 Sept 200910 Sept 2009

Publication series

NameInternational Conference on Computational Methods for Thermal Problems
Volume0
ISSN (Print)2305-5995
ISSN (Electronic)2305-6924

Conference

Conference1st International Conference on Computational Methods for Thermal Problems, THERMACOMP 2009
Country/TerritoryItaly
CityNaples
Period8/09/0910/09/09

Bibliographical note

Publisher Copyright:
© 2009 by the authors of the abstracts.

Keywords

  • Heat Transfer
  • Transverse Oscillation
  • Vortex Dynamics
  • Vortex Shedding

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