Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Bragg Reflection on a Sloping Beach

경사지형에서의 Bragg반사

  • 이종인 (한국건설기술연구원 수자원환경연구부 위촉선임연구원) ;
  • 조용식 (세종대학교 공과대학 토목환경공학과) ;
  • 이정규
  • Published : 1999.08.01
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Abstract

In this study, the Bragg resonant of cnoidal waves propagating over a sinusoidally varying topography lying on a uniformly sloping beach is investigated. The governing equations derived from the Boussinesq equations are numerically integrated. The effects of fast varying terms and nonlinearity in reflection coefficients are also examined. Variation of reflection coefficient for different sloping beaches is studied. It is found that reflection coefficients are not strongly dependent on slopes of beaches.

본 연구에서는 Boussinesq방정식으로부터 유도한 지배방정식을 수치 적분하여 정현파형 지형이 일정한 경사에 놓여 있는 해저지형을 통과하는 크노이드파인 Bragg반사를 해석하였다. 지배방식에 포함된 급변항의 효과와 비선형성의 크기에 따른 Bragg반사를 해석하였다. 또한, 다양한 경사에 따른 반사율의 변화를 계산하여 반사율은 경사에 따라 크게 변화하지 않음을 밝혀냈다.

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References

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