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비특이화 간접경계적분방정식방법을 이용한 2차원 수치수조 개발 및 적용

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dc.contributor.author오승훈-
dc.contributor.author조석규-
dc.contributor.author정동호-
dc.contributor.author성홍근-
dc.date.accessioned2021-08-03T04:29:02Z-
dc.date.available2021-08-03T04:29:02Z-
dc.date.issued2018-
dc.identifier.issn1225-0767-
dc.identifier.issn2287-6715-
dc.identifier.urihttps://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/487-
dc.description.abstractIn this study, a two-dimensional fully nonlinear transient wave numerical tank was developed using a desingularized indirect boundary integral equation method. The desingularized indirect boundary integral equation method is simpler and faster than the conventional boundary element method because special treatment is not required to compute the boundary integral. Numerical simulations were carried out in the time domain using the fourth order Runge-Kutta method. A mixed Eulerian-Lagrangian approach was adapted to reconstruct the free surface at each time step. A numerical damping zone was used to minimize the reflective wave in the downstream region. The interpolating method of a Gaussian radial basis function-type artificial neural network was used to calculate the gradient of the free surface elevation without element connectivity. The desingularized indirect boundary integral equation using an isolated point source and radial basis function has no need for information about the element connectivity and is a meshless method that is numerically more flexible. In order to validate the accuracy of the numerical wave tank based on the desingularized indirect boundary integral equation method and meshless technique, several numerical simulations were carried out. First, a comparison with numerical results according to the type of desingularized source was carried out and confirmed that continuous line sources can be replaced by simply isolated sources. In addition, a propagation simulation of a 2nd-order Stokes wave was carried out and compared with an analytical solution. Finally, simulations of propagating waves in shallow water and propagating waves over a submerged bar were also carried and compared with published data.-
dc.format.extent11-
dc.language한국어-
dc.language.isoKOR-
dc.publisher한국해양공학회-
dc.title비특이화 간접경계적분방정식방법을 이용한 2차원 수치수조 개발 및 적용-
dc.title.alternativeDevelopment and Application of Two-Dimensional Numerical Tank using Desingularized Indirect Boundary Integral Equation Method-
dc.typeArticle-
dc.publisher.location대한민국-
dc.identifier.doi10.26748/KSOE.2018.32.6.447-
dc.identifier.bibliographicCitation한국해양공학회지, v.32, no.6, pp 447 - 457-
dc.citation.title한국해양공학회지-
dc.citation.volume32-
dc.citation.number6-
dc.citation.startPage447-
dc.citation.endPage457-
dc.identifier.kciidART002416656-
dc.description.isOpenAccessN-
dc.description.journalRegisteredClasskci-
dc.subject.keywordAuthorNumerical wave tank 수치수조-
dc.subject.keywordAuthorDesingularized indirect boundary integral equation method 비특이화간접경계적분방정식 방법-
dc.subject.keywordAuthorFully nonlinear free surface boundary condition 완전 비선형 자유수면 조건-
dc.subject.keywordAuthorRadial basis function 방사기저함수-
dc.subject.keywordAuthorMeshless method 무요소 방법-
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친환경해양개발연구본부 (심해공학연구센터)
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