Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Uncertainties in Applying the Independence Principle to the VIV Responses of Yawed Cylinders
Submission Author:
Nicole Hepp Hannes , SC
Co-Authors:
Alexandre Mikowski, André Fujarra, Nicole Hepp Hannes
Presenter: Nicole Hepp Hannes
doi://10.26678/ABCM.COBEM2017.COB17-5909
Abstract
The evaluation of Vortex-Induced Vibrations (VIV) in slender bodies that have some yaw regarding the flow direction has become a major matter of research, since as solution it is a common practice to apply the Independence Principle (IP), a theoretical principle that is robust for a wide range of flow conditions but that starts disagreeing with the experimental results when the yaw angle increases. Thereby, an error propagation is herein carried out to access the influence of each parameter uncertainty in the reduced velocity calculation. As a result, the differences observed in the IP might be more than just a physical matter, but also an uncertainty issue outcome.
Keywords
VIV, independence principle, uncertainty analysis
