Characteristics of Plunging Breaking Waves

Chanson, Hubert and Lee, Jaw-Fang (1995) Characteristics of Plunging Breaking Waves. CE150, Department of Civil Engineering, The University of Queensland.

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Author Chanson, Hubert
Lee, Jaw-Fang
Title Characteristics of Plunging Breaking Waves
School, Department or Centre Department of Civil Engineering
Institution The University of Queensland
Open Access Status Other
Report Number CE150
Publication date 1995-10-01
Total pages 1
Subject 291205 Ocean Engineering
291100 Environmental Engineering
290000 Engineering and Technology
291299 Maritime Engineering not elsewhere classified
260403 Physical Oceanography
260000 Earth Sciences
291200 Maritime Engineering
291101 Environmental Engineering Modelling
290802 Water and Sanitary Engineering
291199 Environmental Engineering not elsewhere classified
260400 Oceanography
290800 Civil Engineering
Abstract/Summary The main mechanisms of air entrainment by breaking waves are spilling breakers and plunging breakers. With plunging breakers, the entrainment of air bubbles is caused by the top of the wave forming a plunging jet and entraining air when it impacts the water in front of the wave. The potential for air bubble entrainment is much greater than the spilling wave type. New experiments were performed in a two-dimensional wave basin. The breaking process was investigated with a high-speed video camera. The results provide new information on the breaking point characteristics, the jet impact conditions and the energy dissipation process. The entrainment of air bubbles is detailed. And the rate of energy dissipation by plunging breakers is estimated. The interactions between air bubble entrainment and energy dissipation mechanisms are discussed.
Keyword plunging breaking waves
energy dissipation
breaking process
air bubble entrainment
physical modelling
Additional Notes CHANSON, H., and LEE, J.F. (1995). "Characteristics of Plunging Breaking Waves." Research Report No. CE150, Dept. of Civil Engineering, University of Queensland, Australia, 54 pages (ISBN 0 86776 6298).

Document type: Department Technical Report
Collection: School of Civil Engineering Publications
 
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Created: Fri, 28 Oct 2005, 10:00:00 EST by Hubert Chanson