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Validity of small-scale physical models involving breaking waves

Validity of small-scale physical models involving breaking waves
Validity of small-scale physical models involving breaking waves
The presence of air bubbles entrained by the action of wave breaking can strongly influence a number of physical processes including wave impact forces on coastal structures, sediment transport and the rate of air-sea gas transfer. Due to their complex nature, laboratory facilities are commonly used to examine the influence of breaking waves on such processes and the large majority of these experiments are made in small-scale flumes filled with freshwater.
In experiments involving non-breaking and hence non-aerating waves, scale effects are often unimportant. However very few authors have commented on the effect of scale on air entrainment by breaking waves, and the information available (Chanson et al., 2002; Lamarre, 1993) is contradictory. It is also noted that many researchers including Haines & Johnson (1995) and Chanson et al. (2002) have suggested that there are considerable differences in the total volume and size distribution of bubbles entrained in freshwater and seawater. It is clear therefore that in order to correctly interpret the results of laboratory tests involving breaking waves, the influence of scale on the entrainment and subsequent evolution of bubble plumes generated by breaking waves, as well as the effect of water type on the size, concentration and distribution of entrained bubbles must be understood.
13-16
Blenkinsopp, C.E.
667e2a73-0488-4e5d-9eda-d58526fbc8c6
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f
Blenkinsopp, C.E.
667e2a73-0488-4e5d-9eda-d58526fbc8c6
Chaplin, J.R.
d5ed2ba9-df16-4a19-ab9d-32da7883309f

Blenkinsopp, C.E. and Chaplin, J.R. (2007) Validity of small-scale physical models involving breaking waves. 22nd International workshop on water waves and floating bodies (Proceedings), Plitvice, Croatia. 14 - 17 Apr 2007. pp. 13-16 .

Record type: Conference or Workshop Item (Paper)

Abstract

The presence of air bubbles entrained by the action of wave breaking can strongly influence a number of physical processes including wave impact forces on coastal structures, sediment transport and the rate of air-sea gas transfer. Due to their complex nature, laboratory facilities are commonly used to examine the influence of breaking waves on such processes and the large majority of these experiments are made in small-scale flumes filled with freshwater.
In experiments involving non-breaking and hence non-aerating waves, scale effects are often unimportant. However very few authors have commented on the effect of scale on air entrainment by breaking waves, and the information available (Chanson et al., 2002; Lamarre, 1993) is contradictory. It is also noted that many researchers including Haines & Johnson (1995) and Chanson et al. (2002) have suggested that there are considerable differences in the total volume and size distribution of bubbles entrained in freshwater and seawater. It is clear therefore that in order to correctly interpret the results of laboratory tests involving breaking waves, the influence of scale on the entrainment and subsequent evolution of bubble plumes generated by breaking waves, as well as the effect of water type on the size, concentration and distribution of entrained bubbles must be understood.

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More information

Published date: 2007
Venue - Dates: 22nd International workshop on water waves and floating bodies (Proceedings), Plitvice, Croatia, 2007-04-14 - 2007-04-17

Identifiers

Local EPrints ID: 53316
URI: http://eprints.soton.ac.uk/id/eprint/53316
PURE UUID: 78194ce5-88bf-4f52-a618-bc3a9ddb5bd7
ORCID for J.R. Chaplin: ORCID iD orcid.org/0000-0003-2814-747X

Catalogue record

Date deposited: 29 Jul 2008
Last modified: 22 Feb 2024 02:35

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Contributors

Author: C.E. Blenkinsopp
Author: J.R. Chaplin ORCID iD

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