This study focuses on the numerical simulations of the flow around tandem cylinders placed in the vicinity of a rigid, horizontal, plane wall. The cylinders are immersed close to a plane wall in a steady current with a logarithmic boundary layer profile at an intermediate, subcritical Reynolds number (Re = 1.31 x 104). The distance between the cylinder centres is L/D = 2 and 5 and the gap between the cylinders and the wall is G/D = 1. Three-dimensional Large Eddy Simulations (LES) with Smagorinsky subgrid scale model are performed using the open-source code OpenFOAM. The present results are analysed through the values of drag and lift coefficients, as well as by the details of the flow fields in the near wake of the cylinders. The results are qualitatively compared to the results of the flow around tandem cylinders for both L/D = 2 and 5, as well as to the case of a single cylinder near a plane wall.
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The Twenty-fifth International Ocean and Polar Engineering Conference
June 21–26, 2015
Kona, Hawaii, USA
ISBN:
978-1-880653-89-0
LES of Flow Around Tandem Cylinders Close to a Horizontal Wall
Mia Abrahamsen Prsic;
Mia Abrahamsen Prsic
Norwegian University of Science and Technology
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Bjørnar Pettersen;
Bjørnar Pettersen
Norwegian University of Science and Technology
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Dag Myrhaug
Dag Myrhaug
Norwegian University of Science and Technology
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Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, Kona, Hawaii, USA, June 2015.
Paper Number:
ISOPE-I-15-136
Published:
June 21 2015
Citation
Prsic, Mia Abrahamsen, Ong, Muk Chen, Pettersen, Bjørnar, and Dag Myrhaug. "LES of Flow Around Tandem Cylinders Close to a Horizontal Wall." Paper presented at the The Twenty-fifth International Ocean and Polar Engineering Conference, Kona, Hawaii, USA, June 2015.
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