DC Field | Value | Language |
---|---|---|
dc.contributor.author | Park, Beomchan | ko |
dc.contributor.author | Cho, Yeunwoo | ko |
dc.date.accessioned | 2020-01-07T03:20:11Z | - |
dc.date.available | 2020-01-07T03:20:11Z | - |
dc.date.created | 2020-01-07 | - |
dc.date.created | 2020-01-07 | - |
dc.date.created | 2020-01-07 | - |
dc.date.issued | 2020-02 | - |
dc.identifier.citation | JOURNAL OF FLUID MECHANICS, v.885, pp.A20 | - |
dc.identifier.issn | 0022-1120 | - |
dc.identifier.uri | http://hdl.handle.net/10203/270910 | - |
dc.description.abstract | Hysteresis phenomena in forced gravity–capillary waves on deep water where the minimum phase speed cmin=23 cm s−1 are experimentally investigated. Four kinds of forcings are considered: two-dimensional/three-dimensional air-blowing/air-suction forcings. For a still-water initial condition, as the forcing speed increases from zero towards a certain target speed ( U ), there exists a certain critical speed ( Ucrit ) at which the transition from linear to nonlinear states occurs. When U<Ucrit , steady linear localized waves are observed (state I). When Ucrit<U<cmin , steady nonlinear localized waves, including steep gravity–capillary solitary waves, are observed (state II). When U≈cmin , periodic shedding phenomena of nonlinear localized depressions are observed (state III). When U>cmin , steady linear non-local waves are observed (state IV). Next, with these state-II, III and IV waves as new initial conditions, as the forcing speed is decreased towards a certain target speed ( Ufinal ), a certain critical speed ( Ucrit,2 ) is identified at which the transition from nonlinear to linear states occurs. When Ucrit,2<Ufinal<Ucrit , relatively steeper steady nonlinear localized waves, including steeper gravity–capillary solitary waves, are observed. When Ufinal<Ucrit,2 , linear state-I waves are observed. These are hysteresis phenomena, which show jump transitions from linear to nonlinear states and from nonlinear to linear states at two different critical speeds. For air-blowing cases, experimental results are compared with simulation results based on a theoretical model equation. They agree with each other very well except that the experimentally identified critical speed ( Ucrit,2 ) is different from the theoretically predicted one. | - |
dc.language | English | - |
dc.publisher | CAMBRIDGE UNIV PRESS | - |
dc.title | Hysteresis phenomena in gravity-capillary waves on deep water generated by a moving two-dimensional/three-dimensional air-blowing/air-suction forcing | - |
dc.type | Article | - |
dc.identifier.wosid | 000503905000001 | - |
dc.identifier.scopusid | 2-s2.0-85077004012 | - |
dc.type.rims | ART | - |
dc.citation.volume | 885 | - |
dc.citation.beginningpage | A20 | - |
dc.citation.publicationname | JOURNAL OF FLUID MECHANICS | - |
dc.identifier.doi | 10.1017/jfm.2019.975 | - |
dc.contributor.localauthor | Cho, Yeunwoo | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | solitary waves | - |
dc.subject.keywordPlus | SOLITARY WAVES | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordPlus | LUMPS | - |
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