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Morison inertia coefficients in orbital flow

Morison inertia coefficients in orbital flow
Morison inertia coefficients in orbital flow
Inertia coefficients for use in Morison’s equation in conditions of orbital flow are significantly lower than those appropriate to planar oscillatory flow. Circulation around the cylinder resulting from asymmetrical shedding of vorticity generates a lift which opposes the conventional inertia force. The magnitude of the lift and the effect of Reynolds number are discussed on theoretical grounds and with reference to force and velocity measurements in orbital flow. Consideration of the lift leads to the formulation of a modified Morison equation, which is appropriate to all circumstances of wave loading on a cylinder when the incident velocity vector is not collinear with the incident acceleration vector.
201-215
Chaplin, John R.
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Chaplin, John R.
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Chaplin, John R. (1985) Morison inertia coefficients in orbital flow. Journal of Waterway, Port, Coastal and Ocean Engineering, 111 (2), 201-215. (doi:10.1061/(ASCE)0733-950X(1985)111:2(201)).

Record type: Article

Abstract

Inertia coefficients for use in Morison’s equation in conditions of orbital flow are significantly lower than those appropriate to planar oscillatory flow. Circulation around the cylinder resulting from asymmetrical shedding of vorticity generates a lift which opposes the conventional inertia force. The magnitude of the lift and the effect of Reynolds number are discussed on theoretical grounds and with reference to force and velocity measurements in orbital flow. Consideration of the lift leads to the formulation of a modified Morison equation, which is appropriate to all circumstances of wave loading on a cylinder when the incident velocity vector is not collinear with the incident acceleration vector.

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Published date: March 1985

Identifiers

Local EPrints ID: 74043
URI: http://eprints.soton.ac.uk/id/eprint/74043
PURE UUID: 9e86e3ca-812f-4823-86ed-9a2b4eff040f
ORCID for John R. Chaplin: ORCID iD orcid.org/0000-0003-2814-747X

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Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:44

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