Conference proceeding
Hydrodynamics on Circular Cylinder Close to a Wall: Effects From Wall Boundary Layers
Volume 5: Pipelines, Risers, and Subsea Systems, Vol.5
ASME 2018: 37th International Conference on Ocean, Offshore and Arctic Engineering (Madrid, Spain, 17/06/2018 - 22/06/2018)
17/06/2018
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Abstract
We present a study on the hydrodynamics of a circular cylinder close to a wall, which is an idealized representative of subsea pipelines and cables used in both offshore oil and gas and marine renewable energy industries. This research utilizes Computational Fluid Dynamics (CFD) modeling method to investigate the influences of the boundary layer turbulence and the cylinder-to-floor distance on hydrodynamic forces. A significant jump in hydrodynamic forces is observed over the range of Reynolds number that coincides with boundary layer transition from laminar to turbulence. This transition gives rise to a drop in the size of the thickness of the boundary layer at the location of the cylinder. The force jump is also characterised by a pressure increase on the upwind surface of the cylinder, while the pressure decreases on the leeward surface.
Details
- Title
- Hydrodynamics on Circular Cylinder Close to a Wall: Effects From Wall Boundary Layers
- Creators
- Feifei Tong - University of Western AustraliaLiang Cheng - University of Western AustraliaHongwei An - University of Western AustraliaTerry Griffiths - University of Western Australia
- Publication Details
- Volume 5: Pipelines, Risers, and Subsea Systems, Vol.5
- Conference
- ASME 2018: 37th International Conference on Ocean, Offshore and Arctic Engineering (Madrid, Spain, 17/06/2018 - 22/06/2018)
- Publisher
- American Society of Mechanical Engineers; New York
- Identifiers
- 991013041311802368
- Academic Unit
- Faculty of Science and Engineering
- Language
- English
- Resource Type
- Conference proceeding