Journal of Korean Society of Coastal and Ocean Engineers (한국해안해양공학회지)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Generation and Maximum Run-up Heights of Cnoidal Waves

크노이드파의 발생과 최대 처오름높이

  • 조용식 (한양대학교 공과대학 토목공학과) ;
  • 전찬후 (한양대학교 공과대학 토목공학과)
  • Published : 2003.06.01
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Abstract

This paper describes the generation and maximum run-up heights of cnoidal waves with varying periods by the numerical model. The model solves the Reynolds equations and the k-epsilon equations for the turbulent analysis. To track free surface displacements, the volume of fluid(VOF) method is employed. It is shown that profiles of the numerically generated cnoidal waves agree well with analytical solutions. The computed maximum run-up heights are compared with laboratory measurements and those of the boundary element method. The present model provides more agreeable results to laboratory measurements that the boundary element model.

본 연구에서는 Reynolds 방정을 지배방정식으로 하고 난류 해석을 위해 k-$\varepsilon$모델을 사용하였으며, 자유수면 변위를 추적하기 위해 VOF기법을 사용한 수치해석 모델을 이용하여 다양한 주기를 갖는 크노이드파의 발생과 최대 처오름높이에 대해 알아보았다. 발생된 크노이드파의 파형은 해석해와 매우 잘 일치하였다 또한, 계산된 최대 처오름높이를 수리모형실험의 관측 값과 비교해 본 결과는 경계요소법에 의한 수치해보다 높은 정확도를 나타내었다.

Keywords

References

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