Void fraction estimation using a simple combined wave gauge system under breaking waves
DC Field | Value | Language |
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dc.contributor.author | Na, Byoungjoon | - |
dc.contributor.author | Son, Sangyoung | - |
dc.date.accessioned | 2022-02-12T12:41:03Z | - |
dc.date.available | 2022-02-12T12:41:03Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2021-12-01 | - |
dc.identifier.issn | 0029-8018 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/135503 | - |
dc.description.abstract | In this study, a unique experimental technique that is capable of quantifying void fraction under two-phase airwater flows based on simple combined resistance and capacitance wave gauge system is described and the subsequent applications are discussed. The technique is validated under various surf-zone breaking waves of different wave periods and wave heights in the 2-dimensional wave flume. The difference in the measured surface elevations by capacitance and resistance wave gauges is positively linked to the depth of aeration and depth-averaged void fraction, that is validated by the corresponding images. The measured depth-averaged void fraction at the passage of the air cavity formed by the overturning jet after breaking showed a distinct pattern in regular and cnoidal waves which is attributed to different amount of droplets generated during the jet-curling process. Based on wavelet analysis, the peak frequency-wave continuously spreads its energy to its superharmonic components due to shoaling while instantaneous spreads of wave energy to the higher harmonics are superposed due to breaking and subsequent jet-overturning. Considering void fraction, a sharper decay of wave energy within the intensely aerated region immediately after breaking is observed and the dissipated energy is reduced as the wave steepness increases following an exponential decay. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.subject | TURBULENT-FLOW FIELD | - |
dc.title | Void fraction estimation using a simple combined wave gauge system under breaking waves | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Son, Sangyoung | - |
dc.identifier.doi | 10.1016/j.oceaneng.2021.110059 | - |
dc.identifier.scopusid | 2-s2.0-85117852256 | - |
dc.identifier.wosid | 000718436300001 | - |
dc.identifier.bibliographicCitation | OCEAN ENGINEERING, v.241 | - |
dc.relation.isPartOf | OCEAN ENGINEERING | - |
dc.citation.title | OCEAN ENGINEERING | - |
dc.citation.volume | 241 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Oceanography | - |
dc.relation.journalWebOfScienceCategory | Engineering, Marine | - |
dc.relation.journalWebOfScienceCategory | Engineering, Civil | - |
dc.relation.journalWebOfScienceCategory | Engineering, Ocean | - |
dc.relation.journalWebOfScienceCategory | Oceanography | - |
dc.subject.keywordPlus | TURBULENT-FLOW FIELD | - |
dc.subject.keywordAuthor | Breaking wave | - |
dc.subject.keywordAuthor | Capacitance-type wave gauge | - |
dc.subject.keywordAuthor | Energy dissipation | - |
dc.subject.keywordAuthor | Resistance-type wave gauge | - |
dc.subject.keywordAuthor | Void fraction | - |
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