Numerical investigation of the vortex-induced vibration of an elastically mounted circular cylinder at high Reynolds number (Re = 104) and low mass ratio using the RANS code
Document Type
Article
Publication Date
1-1-2017
Abstract
This study numerically investigates the vortex-induced vibration (VIV) of an elastically mounted rigid cylinder by using Reynolds-averaged Navier–Stokes (RANS) equations with computational fluid dynamic (CFD) tools. CFD analysis is performed for a fixed-cylinder case with Reynolds number (Re) = 104 and for a cylinder that is free to oscillate in the transverse direction and possesses a low mass-damping ratio and Re = 104. Previously, similar studies have been performed with 3-dimensional and comparatively expensive turbulent models. In the current study, the capability and accuracy of the RANS model are validated, and the results of this model are compared with those of detached eddy simulation, direct numerical simulation, and large eddy simulation models. All three response branches and the maximum amplitude are well captured. The 2-dimensional case with the RANS shear–stress transport k-w model, which involves minimal computational cost, is reliable and appropriate for analyzing the characteristics of VIV.
Keywords
Elasticity, Models, Theoretical, Vibration
Divisions
fac_eng
Funders
Fundamental Research Grant Scheme, Ministry of Education, Malaysia (FRGS - Project No. FP004-2014B),University Malaya Research Grant (UMRG – Project No. RP004E-13AET),University Malaya Postgraduate Research Fund (PPP – Project No. PG102-2014B)
Publication Title
PLoS ONE
Volume
12
Issue
10
Publisher
Public Library of Science