HYDRODYNAMIC DAMPING OF A CIRCULAR CYLINDER IN CURRENT WITH HIGH-FREQUENCY IN-LINE OSCILLATION

Research output: Chapter in Book/Conference paperConference paperpeer-review

Abstract

This pap inv stigat s th hyd odynamic damping of an oscillating ci cula cylind in a st ady cu nt. Th standa d app oach fo stimating th hyd odynamic loads f om combin d wav and cu nt conditions on st uctu s mploys lin a sup position of th loads induc d by ach compon nt s pa at ly. To validat th lin a sup position assumption, two dim nsional (2D) di ct num ical simulations (DNS) of an oscillating ci cula cylind in cu nt hav b n ca i d out at c = 47 – 600, high Stok s numb (β = 1000) and low K ul gan-Ca p nt numb (KC = 0.001 - 2). Th d ag fo c and th in tia fo c a d compos d by assuming that th d ag compon nt is in phas with v locity p ofil, whil th in tia fo c is out of phas by 900. Th p fo manc of two hyd odynamic mod ls in xisting d sign guid lin s, th lativ v locity mod l and ind p nd nt v locity mod l, hav b n xamin d und th pa am t ang in this wo k. Th sults show that th ind p nd nt v locity mod l outp fo ms th lativ v locity mod l in p dicting hyd odynamic damping.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Place of PublicationUSA
PublisherASME International
Pages1-8
ISBN (Electronic)9780791886892
DOIs
Publication statusPublished - 22 Sept 2023
EventASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2023 - Melbourne, Australia
Duration: 11 Jun 202316 Jun 2023

Publication series

NameProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume7

Conference

ConferenceASME 2023 42nd International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2023
Country/TerritoryAustralia
CityMelbourne
Period11/06/2316/06/23

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