VIV study of an elastically mounted cylinder having low mass-damping ratio using RANS model

Khan, Niaz Bahadur and Ibrahim, Zainah and Khan, Muhammad Ijaz and Hayat, Tasawar and Javed, Muhammad Faisal (2018) VIV study of an elastically mounted cylinder having low mass-damping ratio using RANS model. International Journal of Heat and Mass Transfer, 121. pp. 309-314. ISSN 0017-9310, DOI

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This study addresses vortex-induced vibration analysis by an elastic rigid cylinder oscillating free in cross flow direction subject to low mass damping ratio. Two-dimensional Reynold-Averaged Navier-Stokes equations (RAN) for this purpose are simulated. Analysis is carried out for range of reduced velocity = 2–16 which corresponds to Reynolds number 1700–14,000. The mass-ratio is 2.4 and mass-damping ratio 0.0013. Previously, similar studies have been performed numerically but are limited to achieve maximum cylinder response. In the current study, comparatively higher value of maximum amplitude of cylinder is computed. However delay in transition from ‘upper branch’ to ‘lower branch’ is noticed. In addition to maximum amplitude, other hydrodynamic coefficients are also discussed. The results extracted from current simulations are compared with previous experimental studies in literature.

Item Type: Article
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)
Uncontrolled Keywords: Reynold number; Vortex-induced-vibration; CFD simulation; Low mass ratio; RANS code
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 16 Jul 2019 05:18
Last Modified: 16 Jul 2019 05:18

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