Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Development of a Time-Domain Simulation Code for Cross-Flow Vortex-Induced Vibrations of a Slender Structure with Current Using the Synchronization Modelopen access

Authors
Oh, Seung hoonKim, EunsooJung, Dong ho
Issue Date
12월-2022
Publisher
MDPI AG
Keywords
effective incoming flow; lumped-mass line model; numerical analysis method; synchronization model; cross-flow vortex-induced vibration; dynamic relaxation method
Citation
Journal of Marine Science and Engineering , v.10, no.12, pp 1815
Journal Title
Journal of Marine Science and Engineering
Volume
10
Number
12
Start Page
1815
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9425
DOI
10.3390/jmse10121815
ISSN
2077-1312
2077-1312
Abstract
<jats:p>In this paper, the numerical analysis method for the cross-flow vortex-induced vibration (CF VIV) analysis based on the proposed procedure for CF VIV analysis of slender structures is developed. In order to consider the changes in the incoming flow according to the static configuration of the slender structures due to the current, the proposed procedure has three stages. A slender structure is modeled as the lumped-mass line, and the dynamic relaxation method known as the numerical technique for a slender structure with large geometric nonlinearity is applied in the static analysis. The comparison studies with a commercial program are carried out to validate the developed code. The vortex-induced force on slender structures is considered with the synchronization model. To verify the developed CF VIV analysis procedure and numerical method for a slender structure, VIV analysis of the tensioned flexible risers under a uniform and shear current is performed. The simulated results of CF RMS displacement show good agreement with the results of the model test It is found that a tensioned riser vibrates with one dominant frequency in resonance with the nth mode, even though multi-frequencies components of the vortex shedding along the riser due to the shear current occurs.</jats:p>
Files in This Item
Appears in
Collections
친환경해양개발연구본부 > 심해공학연구센터 > Journal Articles

qrcode

Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher Oh, Seunghoon photo

Oh, Seunghoon
친환경해양개발연구본부 (심해공학연구센터)
Read more

Altmetrics

Total Views & Downloads

BROWSE