Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Vol 15 No 1 (2015): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)

Wake Oscillator Model for Vortex-Induced Vibrations Predictions on Low Aspect Ratio Structures

Rahman, Mohd Asamudin A (Unknown)
Thiagarajan, Krish (Unknown)
Leggoe, Jeremy (Unknown)
Fitriadhy, Ahmad (Unknown)

Article Info

Publish Date
20 Jan 2015

Abstract

A phenomenological Wake Oscillator Model (WOM) is studied to capture the coupling effects between the fluid and the structure. The Vortex-Induced Vibration (VIV) phenomenon is modelled to describe the motion imposed by the lift forces on the structure. The influence of the aspect ratio parameter (L/D) was introduced into the model to characterize the VIV phenomenon for finite cylinders. The proposed model captured the basic features of the VIV such as the amplitude of vibration, frequency, and lift coefficient by coupling the structural equation to the wake equation. Predictions of the WOM are discussed and compared with the experimental data in order to establish a relationship describing VIV as a factor of aspect ratios.

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Journal Info
Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Website

Abbrev

jomase

Publisher

Universitas Riau

Subject

Aerospace Engineering Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering Mechanical Engineering

Description

The mission of the JOMAse is to foster free and extremely rapid scientific communication across the world wide community. The JOMAse is an original and peer review article that advance the understanding of both science and engineering and its application to the solution of challenges and complex ...