Head-on collision of the second mode internal solitary waves

DC Field Value Language
dc.contributor.author 테르스카 -
dc.contributor.author 마데리치 -
dc.contributor.author 정경태 -
dc.date.accessioned 2020-07-15T15:52:54Z -
dc.date.available 2020-07-15T15:52:54Z -
dc.date.created 2020-02-11 -
dc.date.issued 2017-04-24 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/24040 -
dc.description.abstract Second mode internal waves are widespread in offshore areas, and they frequently follow the first mode internalwaves on the oceanic shelf. Large amplitude internal solitary waves (ISW) of second mode containing trappedcores associated with closed streamlines can also transport plankton and nutrients. An interaction of ISWs withtrapped cores takes place in a specific manner. It motivated us to carry out a computational study of head-oncollision of ISWs of second mode propagating in a laboratory-scale numerical tank using the nonhydrostatic 3Dnumerical model based on the Navier-Stokes equations for a continuously stratified fluid.Three main classes of ISW of second mode propagating in the pycnocline layer of thickness h between homogeneousdeep layers can be identified: (i) the weakly nonlinear waves (ii) the stable strongly nonlinearwaves with trapped cores and (iii) the shear unstable strongly nonlinear waves (Maderich et al., 2015). Fourinteraction regimes for symmetric collision were separated from simulation results using this classification:(A) an almost elastic interaction of the weakly nonlinear waves (B) a non-elastic interaction of waves withtrapped cores when ISW amplitudes were close to critical non-dimensional amplitude a/h (C) an almost elasticinteraction of stable strongly nonlinear waves with trapped cores (D) non-elastic interaction of the unstablestrongly nonlinear waves.ith closed streamlines can also transport plankton and nutrients. An interaction of ISWs withtrapped cores takes place in a specific manner. It motivated us to carry out a computational study of head-oncollision of ISWs of second mode propagating in a laboratory-scale numerical tank using the nonhydrostatic 3Dnumerical model based on the Navier-Stokes equations for a continuously stratified fluid.Three main classes of ISW of second mode propagating in the pycnocline layer of thickness h between homogeneousdeep layers can be identified: (i) the weakly nonlinear waves (ii) the stable strongly nonlinearwaves with trapped cores and (iii) the shear unstable strongly nonlinear waves (Maderich et al., 2015). Fourinteraction regimes for symmetric collision were separated from simulation results using this classification:(A) an almost elastic interaction of the weakly nonlinear waves (B) a non-elastic interaction of waves withtrapped cores when ISW amplitudes were close to critical non-dimensional amplitude a/h (C) an almost elasticinteraction of stable strongly nonlinear waves with trapped cores (D) non-elastic interaction of the unstablestrongly nonlinear waves. -
dc.description.uri 1 -
dc.language English -
dc.publisher Copernicus -
dc.relation.isPartOf EGU General Assembly 2017 -
dc.title Head-on collision of the second mode internal solitary waves -
dc.type Conference -
dc.citation.conferencePlace GE -
dc.citation.endPage 399 -
dc.citation.startPage 399 -
dc.citation.title EGU General Assembly 2017 -
dc.contributor.alternativeName 정경태 -
dc.identifier.bibliographicCitation EGU General Assembly 2017, pp.399 -
dc.description.journalClass 1 -
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