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Three-dimensional simulation of flow past two circular cylinders of different diameters

  • Western Sydney University

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

The vortex shedding flow past two circular cylinders of different diameters is investigated numerically by solving the three-dimensional Naiver-stokes equations using the Petrov-Galerkin finite element method (PG-FEM). The Reynolds number based on the free stream velocity (U) and the diameter of the large cylinder (D) is Re=1000. Simulations are carried out for a constant gap of 0.0625D and a constant diameter ratio of 0.45. The study is focused on the effect of position angle of small cylinder relative to the larger one on the three-dimensional flow, the force coefficients, the vortex shedding frequencies from the two cylinders and flow characteristics. As observed in the previous experimental studies, biased flow in the wake of the gap is observed when the two cylinders are in nearly side-by-side arrangement and it leads to significant reduction of the oscillation of the forces on the cylinders.

Original languageEnglish
Title of host publicationProceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014
PublisherAustralasian Fluid Mechanics Society
ISBN (Electronic)9780646596952
Publication statusPublished - 2014
Event19th Australasian Fluid Mechanics Conference, AFMC 2014 - Melbourne, Australia
Duration: 8 Dec 201411 Dec 2014

Publication series

NameProceedings of the 19th Australasian Fluid Mechanics Conference, AFMC 2014

Conference

Conference19th Australasian Fluid Mechanics Conference, AFMC 2014
Country/TerritoryAustralia
CityMelbourne
Period8/12/1411/12/14

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