스펙트랄요소법을 이용한 점성 자유표면 유동에 대한 수치해석기법 개발
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 성홍근 | - |
dc.contributor.author | 홍기용 | - |
dc.date.accessioned | 2021-12-08T21:41:02Z | - |
dc.date.available | 2021-12-08T21:41:02Z | - |
dc.date.issued | 20071116 | - |
dc.identifier.uri | https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/6339 | - |
dc.description.abstract | An 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.language | 한국어 | - |
dc.language.iso | KOR | - |
dc.title | 스펙트랄요소법을 이용한 점성 자유표면 유동에 대한 수치해석기법 개발 | - |
dc.title.alternative | Numerical Modelling of Viscous Free Surface Flows Using Spectral Element Method | - |
dc.type | Conference | - |
dc.citation.title | 한국해양공학회 추계 학술대회 | - |
dc.citation.volume | 1 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 112 | - |
dc.citation.endPage | 122 | - |
dc.citation.conferenceName | 한국해양공학회 추계 학술대회 | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(34103) 대전광역시 유성구 유성대로1312번길 32042-866-3114
COPYRIGHT 2021 BY KOREA RESEARCH INSTITUTE OF SHIPS & OCEAN ENGINEERING. ALL RIGHTS RESERVED.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.