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스펙트랄요소법을 이용한 점성 자유표면 유동에 대한 수치해석기법 개발

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dc.contributor.author성홍근-
dc.contributor.author홍기용-
dc.date.accessioned2021-12-08T21:41:02Z-
dc.date.available2021-12-08T21:41:02Z-
dc.date.issued20071116-
dc.identifier.urihttps://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/6339-
dc.description.abstractAn accurate and efficient numerical modelling of viscous free surface flows is introduced in this paper. The governing equation of the flow is based on the Navier-Stokes equations incorporating the velocity-pressure formulation. In order to deal with the free surface motion, an Arbitrary Lagrangian-Eulerian (ALE) description is adopted. The paper addresses the solution procedure and characteristic aspects of the present modeling and its numerical implementation. For higher-order accuracy, the Spectral Element Method (SEM), which possesses the property of high-order spatial accuracy as proposed by Karniadakis & Sherwin (2005), is utilized. It is shown that the present SEM produces very accurate and convergent solutions to the Poisson equation, the Helmholtz equation, and a manufactured problem of the N-S equations that are originally devised by Johnston and Liu (2004). Numerical results of the lid-driven cavity flow are compared with other numerical results. As for the viscous free surface flows, viscous sloshing with a prescribed initial free surface profile is simulated and it is shown that the present methodology gives very reasonable results for the small-amplitude problem. As for the nonlinear waves, propagation of soliton and run-up on the vertical wall is evaluated with a very high level of accuracy.-
dc.language한국어-
dc.language.isoKOR-
dc.title스펙트랄요소법을 이용한 점성 자유표면 유동에 대한 수치해석기법 개발-
dc.title.alternativeNumerical Modelling of Viscous Free Surface Flows Using Spectral Element Method-
dc.typeConference-
dc.citation.title한국해양공학회 추계 학술대회-
dc.citation.volume1-
dc.citation.number1-
dc.citation.startPage112-
dc.citation.endPage122-
dc.citation.conferenceName한국해양공학회 추계 학술대회-
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