Buoyancy effect on the wake of a confined circular cylinder during opposing laminar mixed convection heat transfer

Iván Guillén, Cesar Treviño, Lorenzo Martínez-Suástegui

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

Abstract

Particle image velocimetry (PIV) measurements are carried out in an experimental investigation of transient laminar opposing mixed convection to assess the thermal effects on the wake of an isothermal circular cylinder placed horizontally and confined inside a vertical closed-loop downward rectangular water channel. The buoyancy effect on the flow distributions are revealed for flow conditions with Reynolds number based on cylinder diameter of Re=170, blockage ratio D/H=0.287, aspect ratio, L/D=6.97 and values of the buoyancy parameter (Richardson number) of Ri=0 and 1. Results show that the wake closure length and Strouhal number slightly decrease for increasing Richardson number.

Original languageEnglish
Title of host publicationMechanical and Aerospace Engineering IV
Pages675-679
Number of pages5
DOIs
StatePublished - 2013
Event2013 4th International Conference on Mechanical and Aerospace Engineering, ICMAE 2013 - Moscow, Russian Federation
Duration: 20 Jul 201321 Jul 2013

Publication series

NameApplied Mechanics and Materials
Volume390
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2013 4th International Conference on Mechanical and Aerospace Engineering, ICMAE 2013
Country/TerritoryRussian Federation
CityMoscow
Period20/07/1321/07/13

Keywords

  • Aspect ratio
  • Blockage ratio
  • End effects
  • PIV
  • Wall effects

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