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

Niaz Bahadur Khan; Zainah Ibrahim; Linh Tuan The Nguyen; Muhammad Faisal Javed; Mohammed Jameel

doi:10.1371/journal.pone.0185832

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

PLoS One. 2017 Oct 5;12(10):e0185832. doi: 10.1371/journal.pone.0185832. eCollection 2017.

Authors

Niaz Bahadur Khan¹, Zainah Ibrahim¹, Linh Tuan The Nguyen², Muhammad Faisal Javed³, Mohammed Jameel⁴

Affiliations

¹ University of Malaya, Department of Civil, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.
² PetroVietnam, Exploration and Production Company, Hanoi, Vietnam.
³ Department of Civil Engineering, COMSATS Institute of Information Technology, Abbottabad, Pakistan.
⁴ Civil Engineering Department, Lords Institute of Engineering & Technology, Hyderabad, India.

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.

Publication types

Validation Study

MeSH terms

Elasticity*
Models, Theoretical
Vibration*

Grants and funding

The authors gratefully acknowledged the support given by 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). PetroVietnam, Exploration and Production Company, a commercial company, provided support in the form of salary for author Linh Tuan The Nguyen, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. The specific roles of these authors are articulated in the 'author contributions' section.