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이완법을 이용한 SWASH 모형의 파랑 조파기법 개선Improvement of Wave Generation for SWASH Model Using Relaxation Method

Other Titles
Improvement of Wave Generation for SWASH Model Using Relaxation Method
Authors
신충훈윤성범
Issue Date
Aug-2017
Publisher
한국해안,해양공학회
Keywords
nonlinear wave generation; relaxation method; non-hydrostatic model; SWASH; 비선형파 조파; 이완법; 비정수압 수치모형; SWASH
Citation
한국해안·해양공학회논문집, v.29, no.4, pp 169 - 179
Pages
11
Indexed
KCI
Journal Title
한국해안·해양공학회논문집
Volume
29
Number
4
Start Page
169
End Page
179
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/11058
DOI
10.9765/KSCOE.2017.29.4.169
ISSN
1976-8192
2288-2227
Abstract
본 연구에서는 선형 및 비선형 파의 안정적이고 정확한 조파를 위해 이완법을 이용한 조파기법을 비정수압수치모형인 SWASH 모형에 적용하였다. 이완법을 이용한 조파기법을 검증하기 위해 선형파와 비선형파인 경우에대해 수치실험을 수행하였고 해석해와 비교하였다. 그 결과 Stokes 파 영역으로부터 cnoidal 파 영역에 이르는 모든 경우의 입사파랑이 성공적으로 생성되고 전파되었다. 또한 파고와 파형이 해석해와 잘 일치하는 것을 확인할 수 있었다.
In this study, we applied the wave generation method by relaxation method to the SWASH model, which is a non - hydrostatic numerical model, for stable and accurate wave generation of linear and nonlinear waves. To validate the relaxation wave generation method, we were simulated various wave, including the linear wave and nonliner wave and compared with analytical solution. As a result, the incident wave was successfully generated and propagated in all cases from Stokes waves to cnoidal wave. Also, we were confirmed that the wave height and the waveform were in good agreement with the analytical solution.
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