Void fraction measurements in breaking waves

C.E. Blenkinsopp, J.R. Chaplin

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

This paper describes detailed measurements and analysis of the time-varying distribution of void fractions in three different breaking waves under laboratory conditions. The measurements were made with highly sensitive optical fibre phase detection probes and document the rapid spatial and temporal evolutions of both the bubble plume generated beneath the free surface and the splashes above. Integral properties of the measured void fraction fields reveal a remarkable degree of similarity between characteristics of the two-phase flow in different breaker types as they evolve with time. Depending on the breaker type, the energy expended in entraining air and generating splash accounts for a minimum of between 6.5 and 14% of the total energy dissipated during wave breaking.
Original languageEnglish
Pages (from-to)3151-3170
Number of pages20
JournalProceedings of the Royal Society of London Series A - Mathematical Physical and Engineering Sciences
Volume463
Issue number2088
DOIs
Publication statusPublished - 8 Dec 2007

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Breaking Waves
Void Fraction
circuit breakers
Void fraction
voids
Wave Breaking
two phase flow
Two-phase Flow
Energy
Two phase flow
Free Surface
Optical Fiber
Bubble
plumes
Optical fibers
Time-varying
Probe
bubbles
optical fibers
energy

Cite this

Void fraction measurements in breaking waves. / Blenkinsopp, C.E.; Chaplin, J.R.

In: Proceedings of the Royal Society of London Series A - Mathematical Physical and Engineering Sciences, Vol. 463, No. 2088, 08.12.2007, p. 3151-3170.

Research output: Contribution to journalArticle

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