VIV of flexible cylinder in oscillatory flow
VIV of flexible cylinder in oscillatory flow
Kategori
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Sammendrag
VIV in oscillatory flow is experimentally investigated in the ocean basin. The flexible test cylinder was forced to harmonically oscillate in various combinations of amplitude and period. VIV responses at cross flow direction are investigated using modal decomposition and wavelet transformation. The results show that VIV in oscillatory flow is quite different from that in steady flow; novel features such as ‘intermittent VIV’, amplitude modulation, mode transition are observed. Moreover, a VIV developing process including “Building-Up”, “Lock-In” and “Dying-Out” in oscillatory flow, is further proposed and analyzed.
Språk
Engelsk
Institusjon(er)
- Shanghai Jiao Tong University
- Equinor
- SINTEF Ocean / Skip og havkonstruksjoner
- Norges teknisk-naturvitenskapelige universitet
År
Forlag
The American Society of Mechanical Engineers (ASME)
Bok
Proceedings of the ASME 32nd International Conference on Ocean, Offshore and Arctic Engineering- OMAE 2013
Hefte nr.
7
ISBN
978-0-7918-5541-6
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