Abstract
In ocean applications, the unsteady nature of the ambient current leads to time varying vortex shedding dynamics that are not well understood. The objective of this experimental study was to investigate how the presence of a slowly varying mean flow influences the frequency content of the fluctuation field of the wake. Particular attention was focused on the role that low frequency mean flow variations play in amplitude and phase modulation of the wake vortex pattern and associated fluctuations field. These modulations may pose potential problems if they fall near resonant frequencies of the structure. In addition, the role of nonlinear effects of the mean flow unsteadiness in the production of higher frequency modes are examined. Such modes are important for fatigue considerations. (after Authors)
| Original language | English |
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| Title of host publication | Unknown Host Publication Title |
| State | Published - 1992 |