Experimental investigation of breaking criteria of deepwater wind waves under strong wind action SCIE SCOPUS

Cited 9 time in WEB OF SCIENCE Cited 11 time in Scopus
Title
Experimental investigation of breaking criteria of deepwater wind waves under strong wind action
Author(s)
Oh, Sang-Ho; Mizutani, Natsuki; Suh, Kyung-Duck; HashiMoto, Noriaki
KIOST Author(s)
Oh, Sang Ho(오상호)
Publication Year
2005-08
Abstract
The present study describes an experimental investigation of breaking criteria of deepwater wind waves under strong wind action. In a wind wave flume, waves were generated using different wind speeds and measured at different locations to obtain wave trains of no, intermittent, or frequent breaking. Water particle movement and free surface elevation were measured simultaneously using a PIV system and a wave gauge, respectively. For wind waves, not all the waves measured at a fixed location are breaking waves, and the breaking of a larger wave is not guaranteed. However, the larger the wave height, the larger the probability of breaking. In order to take as many breaking waves as possible for the cases of frequent breaking, we used the waves whose heights were close to the highest one-tenth wave height. The experimental results showed that the geometric or kinematic breaking criteria could not explain the occurrence of breaking of wind waves. On the other hand, the vertical acceleration beneath the wave crest was close to the previously suggested limit value, - 0.5g, when frequent breaking of large waves occurred, indicating that the dynamic breaking criterion would be good for discriminating breaking waves under a strong wind action. (C) 2006 Elsevier Ltd. All rights reserved.
ISSN
0141-1187
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5044
DOI
10.1016/j.apor.2006.01.001
Bibliographic Citation
APPLIED OCEAN RESEARCH, v.27, no.4-5, pp.235 - 250, 2005
Publisher
ELSEVIER SCI LTD
Subject
PARTICLE IMAGE VELOCIMETRY; STEEP GRAVITY-WAVES; SPURIOUS VECTORS; GENERATED WAVES; FIELD; ACCELERATION; KINEMATICS; WHITECAPS; VELOCITY; FLOWS
Keywords
wave breaking criteria; particle image velocimetry; wind waves; laboratory experiment
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCI LTD
Related Researcher
Research Interests

Coastal engineering,Physical experiment,Coastal wave,항만공학,수리실험,연안파랑

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