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iDEA: Drexel E-repository and Archives > Drexel Academic Community > College of Engineering > Department of Civil, Architectural,and Environmental Engineering > Proceedings of the 7th International Conference on HydroScience and Engineering (ICHE 2006) [ISBN: 0977447405] > Large eddy simulation of flow past free surface piercing circular cylinders

Please use this identifier to cite or link to this item: http://hdl.handle.net/1860/1497

Title: Large eddy simulation of flow past free surface piercing circular cylinders
Authors: Yu, Guangxu
Avital, Eldad
Williams, John
Keywords: Large eddy simulation;High performance computing;Computational hydraulics
Issue Date: 11-Sep-2006
Publisher: Michael Piasecki and College of Engineering, Drexel University
Citation: Proceedings of the Seventh International Conference on Hydroscience and Engineering, Philadelphia, PA, September 2006. http://hdl.handle.net/1860/732
Abstract: Flows past a free surface piercing cylinder are studied numerically by large eddy simulation (LES) at Froude numbers up to FrD=2.0 and Reynolds numbers up to ReD=1.105. A two-phase FCT-VOF method is employed to simulate the air-water interface. The effects of the free surface on vortex structure in the near wake are particularly investigated. The loadings on the cylinder at various Reynolds and Froude numbers are also studied. Computation results show the free surface inhibits the vortex generation in the near wake, and this effect is stronger at higher Froude numbers, nevertheless, it is attenuated as the Reynolds number increases. It is also found that the strong three dimensionality in the near wake at higher Froude numbers affects the force distribution dramatically along the cylinder, whereas variation in the Reynolds number has no significant effect.
Description: Paper presented at The Seventh International Conference on HydroScience and Engineering (ICHE) hosted by the College of Engineering at Drexel Univeristy on September 10-13, 2006 in Philadelphia, Pennsylvania. The conference theme was IT in the Field of HydroSciences. It included several mini-symposia that emphasized IT topics in HydroSciences and the yearly meeting of the metadata group of the International Oceanographic Data and Information Exchange organization.
URI: http://hdl.handle.net/1860/1497
ISBN: 0977447405
Appears in Collections:Proceedings of the 7th International Conference on HydroScience and Engineering (ICHE 2006) [ISBN: 0977447405]

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