A freely moving body in a boundary layer: Nonlinear separated-flow effects

Frank Smith*, Ryan A Palmer

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review


In the boundary layer offluid on a moving solid surface (such as on a moving vehicle e.g. ships) a thin body istranslating parallel to the surface. The streamwise movement of the body relative to the solid surface is sub-stantial, with the upstream or downstream velocity being comparable with the free-stream velocity. The dy-namicfluid/body interaction here incorporates the effects of incident vorticity, nonlinear and separatingflow.Modelling, analysis and reduced computation explore the all-important influences of body shape, moment ofinertia and centre-of-mass location. These influences and the initial conditions affect whether nonlinear oscil-lations of thefluid and body motions continue or fully nonlinear focussing occurs after afinite time
Original languageEnglish
JournalApplied Ocean Research
Publication statusPublished - 15 Feb 2019

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