Application Of 2D URANS In Fluid Structure
Interaction Problems Of Rectangular Cylinders
Author(s)
F. Nieto, D. Hargreaves, J. Owen & S. Hernández
Abstract
In this work the authors have studied the applicability of the 2D URANS
approach adopting a block structured mesh and Menter’s SST k-omega
turbulence model for the aspect ratio 4 rectangular cylinder. As a first step, a
verification study is carried out for the mesh refinement level and the time step
size. Then, the static response for a 0º angle of attack is considered for validation
purposes. The vortex induced vibration response is computed based on the outof-
phase component and phase angle of a one degree of freedom heave forced
oscillation simulation at different reduced velocities. Finally, the flutter
derivatives are evaluated based on the results of forced induced oscillations in
both heave and pitch degrees of freedom. The computational results obtained
herein have been in agreement with both experimental and numerical data
available in the literature. The proposed methodology based on 2D URANS is
less computer power demanding than a 3D LES approach, while it keeps a good
accuracy level, which is of particular interest in the frame of industrial
applications.
Keywords: CFD, rectangular cylinder, URANS, vortex shedding, flutter
derivatives.
Keywords
CFD, rectangular cylinder, URANS, vortex shedding, flutter
derivatives.
Related Book
Other papers in this volume
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