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

Smith, F; Palmer, R; (2019) A freely moving body in a boundary layer: Nonlinear separated-flow effects. Applied Ocean Research , 85 pp. 107-118. 10.1016/j.apor.2019.02.002. Green open access

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Abstract

In the boundary layer of fluid on a moving solid surface (such as on a moving vehicle e.g. ships) a thin body is translating parallel to the surface. The streamwise movement of the body relative to the solid surface is substantial, with the upstream or downstream velocity being comparable with the free-stream velocity. The dynamic fluid/body interaction here incorporates the effects of incident vorticity, nonlinear and separating flow. Modelling, analysis and reduced computation explore the all-important influences of body shape, moment of inertia and centre-of-mass location. These influences and the initial conditions affect whether nonlinear oscillations of the fluid and body motions continue or fully nonlinear focussing occurs after a finite time.

Type: Article
Title: A freely moving body in a boundary layer: Nonlinear separated-flow effects
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.apor.2019.02.002
Publisher version: http://doi.org/10.1016/j.apor.2019.02.002
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Fluid-body interaction, Modelling, Analysis, Ice particles
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics
URI: https://discovery.ucl.ac.uk/id/eprint/10068198
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