한국수자원학회논문집 (Journal of Korea Water Resources Association)

  • 제37권9호
  • /
  • Pages.729-736
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  • 2004
  • /
  • 2799-8746(pISSN)
  • /
  • 2799-8754(eISSN)
한국수자원학회 (Korea Water Resources Association)
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사각형형상 불투과성 수중방파제를 통과하는 불규칙파의 반사

Reflection of Random Waves Propagating over Rectangular Submerged Non-Porous Breakwaters

  • 정재상 (현대산업개발 토목사업본부) ;
  • 조대희 (극동건설 토목기술2팀) ;
  • 황종길 (한양대학교 대학원 토목공학과) ;
  • 조용식 (한양대학교 공과대학 토목공학과)
  • 발행 : 2004.09.01
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초록

본 연구에서는 사각형 형상 불투과성 수중방파제를 통과하는 불규칙파의 반사를 고유함수전개법을 이용하여 해석하였으며, 수리모형실험 결과와 비교하였다. 불규칙파는 다수의 규칙파의 중첩으로 구성하였으며, 각각의 규칙파의 해석결과를 합성하여 반사율을 산정하였다. 고유함수전개법에 의한 해석결과는 수리모형실험에 의한 결과와 잘 일치하였으며, 불규칙파 역시 Bragg 반사 조건에서 공명현상에 의해 반사율이 크게 증폭되었다.

Analysis of reflection of random waves propagating over rectangular submerged non-porous breakwaters was performed by using the eigenfunction expansion method. In this study, random waves were generated by superposition of several monochromatioc waves. Reflection coefficients were calculated by summing each numerical results of regular waves. Predicted results from the eigenfunction expansion method were in a good agreement with the results of laboratory measurements. Reflection coefficients of random waves were also resonated at the Bragg reflection condition.

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참고문헌

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