Turbulent Flow Around a Semi-Submerged Rectangular Cylinder-Reference-Cited by-同舟云学术

Turbulent Flow Around a Semi-Submerged Rectangular Cylinder

Published:2013-09-27 Issue:4 Volume:135 Page:
ISSN:0892-7219
Container-title:Journal of Offshore Mechanics and Arctic Engineering
language:en
Short-container-title:

Author:

Arslan Tufan¹,Malavasi Stefano²,Pettersen Bjørnar³,Andersson Helge I.⁴

Affiliation:

1. Department of Marine Technology, Norwegian University of Science and Technology, Trondheim 7491, Norway e-mail:

2. Department of Civil and Environmental Engineering, Politecnico di Milano, Milan 20133,Italy e-mail:

3. Department of Marine Technology, Norwegian University of Science and Technology, Trondheim 7491,Norway e-mail:

4. Department of Energy and Process Engineering, Norwegian University of Science and Technology, Trondheim 7491,Norway e-mail:

Abstract

The present work is motivated by phenomena occurring in the flow field around structures partly submerged in water. A three-dimensional (3D) unsteady flow around a rectangular cylinder is studied for four different submergence ratios by using computational fluid dynamics (CFD) tools with the large eddy simulation (LES) turbulence model. The simulation results are compared to particle image velocimetry (PIV) measurements at the Reynolds number Re = 12,100 and the Froude number Fr = 0.26. The focus in our investigation is on the characterization of the behavior of vortex structures generated by separated flow. Another target in the study is to obtain a better knowledge of the hydrodynamic forces acting on a semi-submerged structure. The computed force coefficients are compared with experimental measurements.

Publisher

ASME International

Subject

Mechanical Engineering,Ocean Engineering

Link

http://asmedigitalcollection.asme.org/offshoremechanics/article-pdf/doi/10.1115/1.4025144/6241940/omae_135_04_041801.pdf

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