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A fully adaptive free surface definition algorithm suitable for modelling unsteady wave flow around floating structures

Turnock, S.R. and Wright, A. (1999) A fully adaptive free surface definition algorithm suitable for modelling unsteady wave flow around floating structures At 3rd ASME/JSME Joint Fluids Engineering Conference (FESDSM '99). 18 - 23 Jul 1999. 6 pp.

Record type: Conference or Workshop Item (Paper)

Abstract

The development of a robust computational algorithm suitable for modeling the motion of the three-dimensional interface between air, water and a floating structure is described. The algorithm uses an advanced data structure to define the free surface interface as a series of nodes joined to an arbitrary number of other nodes located on the interface. Each node-node connection is defined uniquely as an edge, and the overall surface as a series of patches constructed from an arbitrary number of edges. Continuity of surface gradient and curvature at each node is determined via an iterative procedure. Once calculated this provides sufficient end conditions to define each edge as a parametric cubic spline and each patch as a combination of 3 and/or 4 edge bi-cubic patches. An identical data structure defines the surface of the floating structure. Nodes at the intersection between the floating structure and free surface are accurately tracked over the actual surface of the structure through knowledge of its local gradient and curvature.

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More information

Submitted date: July 1999
Additional Information: FEDSM99-7086
Venue - Dates: 3rd ASME/JSME Joint Fluids Engineering Conference (FESDSM '99), 1999-07-18 - 1999-07-23
Keywords: cfd, surface geometry
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 63941
URI: http://eprints.soton.ac.uk/id/eprint/63941
PURE UUID: e86c8fdb-749d-4b82-9906-7ca6cefa27bc
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400

Catalogue record

Date deposited: 20 Nov 2008
Last modified: 17 Jul 2017 14:14

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