Improvement to body impact predictions using CFD through analysis of an unsteady boundary layer.
Improvement to body impact predictions using CFD through analysis of an unsteady boundary layer.
The problem of a body impacting water and subsequent settling requires an unsteady boundary layer to be modelled. In order to ensure that this boundary layer is being modelled correctly,
the flow along an impulsively started flat plate moving parallel to the flow is investigated. The boundary layer on an impulsively started flat plate is well understood and is also reasonably simple to model using CFD. A commercial Naver-Stokes equations solver is used to carry out the simulation (ANSYS, 2008). The results are used to develop a methodology for generating a mesh capable of boundary layer resolution in this type of flow. A bow section impacting with water is then modelled, using the techniques developed for accurate prediction of the boundary layer.
cfd, drop test, ship slamming
65-70
Lewis, S.G.
68605959-735b-4e84-9fb2-7f0bff6beddb
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
September 2008
Lewis, S.G.
68605959-735b-4e84-9fb2-7f0bff6beddb
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Lewis, S.G., Hudson, D.A. and Turnock, S.R.
(2008)
Improvement to body impact predictions using CFD through analysis of an unsteady boundary layer.
11th Numerical Towing Tank Symposium, Brest, France.
06 - 08 Sep 2008.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
The problem of a body impacting water and subsequent settling requires an unsteady boundary layer to be modelled. In order to ensure that this boundary layer is being modelled correctly,
the flow along an impulsively started flat plate moving parallel to the flow is investigated. The boundary layer on an impulsively started flat plate is well understood and is also reasonably simple to model using CFD. A commercial Naver-Stokes equations solver is used to carry out the simulation (ANSYS, 2008). The results are used to develop a methodology for generating a mesh capable of boundary layer resolution in this type of flow. A bow section impacting with water is then modelled, using the techniques developed for accurate prediction of the boundary layer.
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Published date: September 2008
Venue - Dates:
11th Numerical Towing Tank Symposium, Brest, France, 2008-09-06 - 2008-09-08
Keywords:
cfd, drop test, ship slamming
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 63453
URI: http://eprints.soton.ac.uk/id/eprint/63453
PURE UUID: df708db0-310f-453a-b291-3329d166948f
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Date deposited: 07 Oct 2008
Last modified: 12 Dec 2021 02:51
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Contributors
Author:
S.G. Lewis
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