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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Tamimi, V. Zeinoddini, M. Bakhtiari, A. Golestani, M. |
| Copyright Year | 2012 |
| Abstract | In this paper results from simulating the vortex shedding phenomena behind a fixed tapered circular cylinder, at relatively high Reynolds numbers, are reported. Ansys-CFX computational fluid dynamics model, based on solving three-dimensional (3D) incompressible transient Navier Stokes equations, is employed for this purpose. The geometries applied in the models resemble those used in wind tunnel experiments by other researchers. The taper slope along the cylinder span is uniform with a tangent of 24:1. The diameter at mid-span of the cylinder equals to 0.0389 m. The Reynolds number (based on the mid-span diameter) is around 29,000. The computational model has first been calibrated against experiments for uniform 3D cylinders as well as results from a Direct Numerical Simulation of turbulent wake with vortex shedding past a uniform circular cylinder, as obtained by other researchers. The main flow characteristics for tapered cylinders such as vortex dislocations and splitting, cellular vortex shedding, oblique vortex shedding and the variation of the vorticity patterns along the tapered cylinder could be obtained from the simulations. |
| Sponsorship | Ocean, Offshore and Arctic Engineering Division |
| Starting Page | 931 |
| Ending Page | 939 |
| Page Count | 9 |
| File Format | |
| ISBN | 9780791844922 |
| DOI | 10.1115/OMAE2012-84126 |
| Volume Number | Volume 5: Ocean Engineering; CFD and VIV |
| Conference Proceedings | ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering |
| Language | English |
| Publisher Date | 2012-07-01 |
| Publisher Place | Rio de Janeiro, Brazil |
| Access Restriction | Subscribed |
| Subject Keyword | Vortex shedding Navier-stokes equations Computational fluid dynamics Computer simulation Wind tunnels Reynolds number Wake turbulence Flow (dynamics) Circular cylinders Dislocations Transients (dynamics) Simulation Vortices Vorticity Cylinders |
| Content Type | Text |
| Resource Type | Article |
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