The Effect of Changed Mass Ratio on the Motion of a Tethered Cylinder
The flow past a buoyant tethered cylinder was investigated for a variety of mass ratios. A critical mass ratio, m * = 0.2 – 0.3 was found for the uniform flow past a tethered cylinder, below which sustained large amplitude oscillations were observed up to the highest reduced velocity simulated in this study. The critical mass ratio was found to coincide closely with that found in previous studies for a hydro-elastically mounted cylinder using two-dimensional simulations.
KeywordsFroude Number Discontinuous Jump Spectral Element Method Fluid Force Large Amplitude Oscillation
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