BREAKING CRITERIA FOR LABORATORY EXPERIMENTS BASED ON THE PHASE-TIME-METHOD (PTM)

Kai Irschik; Stefan Schimmels; Hocine Oumeraci

doi:10.9753/icce.v32.waves.6

No. 32 (2010), Waves

No. 32 (2010)

BREAKING CRITERIA FOR LABORATORY EXPERIMENTS BASED ON THE PHASE-TIME-METHOD (PTM)

Waves

Published 2011-01-27

Kai Irschik⁺⁻
Stefan Schimmels⁺⁻
Hocine Oumeraci⁺⁻

Kai Irschik

Stefan Schimmels

Hocine Oumeraci

Proceedings of the 32nd International Conference

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Keywords

transient wave packet
wave focusing
breaking waves
breaking criterion
Phase-Time-Method

How to Cite

BREAKING CRITERIA FOR LABORATORY EXPERIMENTS BASED ON THE PHASE-TIME-METHOD (PTM). (2011). Coastal Engineering Proceedings, 1(32), waves.6. https://doi.org/10.9753/icce.v32.waves.6

Abstract

Breaking waves generated by focusing of transient wave packets have been analyzed. By a comparison of video data and gauge measurements the threshold frequency for the use of the PTM as a breaking criterion is derived. The present result is slightly higher than the original value of Zimmermann & Seymour (2002) for spilling breakers, but confirms the results of Irschik & Oumeraci (2006). Additionally the use of the zero down-cross period Tz instead of the peak period TP is investigated. Both definitions lead for the present conditions with plunging breakers to almost identical results.

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References

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Irschik, K., and H. Oumeraci. 2006. Effect of breaker types on breaking wave loads on a slender vertical and inclined pile. Proceedings of 30th International Conference on Coastal Engineering, ICCE 2006, ASCE, 4520-4531.

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Zimmermann, C.-A., and R. Seymour. 2002. Detection of Breaking in a Deep Water Wave Record. Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 128, 2, 72-78. http://dx.doi.org/10.1061/(ASCE)0733-950X(2002)128:2(72)

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BREAKING CRITERIA FOR LABORATORY EXPERIMENTS BASED ON THE PHASE-TIME-METHOD (PTM)

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