Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Improvement of Wave Generation for SWASH Model Using Relaxation Method

이완법을 이용한 SWASH 모형의 파랑 조파기법 개선

  • Shin, Choong Hun (Industry-University Cooperation Foundation, ERICA Campus, Hanyang University) ;
  • Yoon, Sung Bum (Dept. of Civil, Env. and Plant Engrg., ERICA Campus, Hanyang University)
  • 신충훈 (한양대학교 ERICA 산학협력단) ;
  • 윤성범 (한양대학교 건설환경플랜트공학과)
  • Received : 2017.06.30
  • Accepted : 2017.07.26
  • Published : 2017.08.31
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Abstract

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.

본 연구에서는 선형 및 비선형파의 안정적이고 정확한 조파를 위해 이완법을 이용한 조파기법을 비정수압 수치모형인 SWASH 모형에 적용하였다. 이완법을 이용한 조파기법을 검증하기 위해 선형파와 비선형파인 경우에 대해 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.

Keywords

References

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