Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
권호 표지

Calculation of Run-up Height on a Conical island with Variable Transverse Lengths of Incident Waves

입사파폭에 따른 원추형 섬에서의 처오름높이 계산

  • 조용식 (세종대학교 공과대학 토목공학과)
  • Published : 1998.08.01
Download PDF
⟨ Previous Next ⟩

Abstract

Using a numerical model solving the shallow-water equations, unusual huge run-up heights observed in the lees of both Babi and Okushiri islands were investigated in detail. The effects of incident tsunami widths were particularly examined by adjusting the transverse length of the wave-maker in laboratory and numerical experiments. The calculated run-up heights were compared with the laboratory experimental data. It has been found that the run-up heights in the lee of a conical island are strongly dependent on the ratio of a transverse length of incident tsuanmis to a base diameter of the island. Keywords : shallow-water equations, tsunami, run-up height, conical island.

천수방정식을 해석하는 수치모형을 이용하여 Babi 섬과 Okushiri섬의 배후지역에서 관측되었던 지진해일의 매우 높은 처오름높이에 관한 연구를 수행하였다. 특히, 입사파의 폭을 조절하여 섬의 바닥지름과 입사폭의 비율 변화에 따른 원추형 섬에서의 최대 처오름높이의 변화를 조사하기 위해 여러 경우의 입사파폭에 대하여 수치계산을 수행하여 수리모형실험 결과와 비교하였다. 원추형 섬의 배후지역에서의 처오름높이는 섬의 해저지름에 대한 입사파 폭의 비율과 밀접한 관련이 있음을 밝혀냈다.

Keywords

References

  1. Trans. Am. Geophy. Union v.27 Refraction of water waves by islands and shoals with circular bottom contours Arthur, R.S.
  2. Proc. of Int. Sym: Waves-Physical and Numerical Modelling Tsunami runup on a conical island Briggs, M.J.;Synolakis, C.E.;Harkins, G.S.
  3. Numerical simulaitons of tsunami propagaion and run-up, PhD Thesis Cho, Y.-S.
  4. EOS, Transations v.74 Tsunami devastates Japanese coastal region Hokkaido Tsunami Survey Group
  5. J. of Fluid Mechanics v.41 Gravity wave refraction by island Lautenbacher, C.C.
  6. J. of Fluid Mechanics v.302 Run-up of solitary wave on a circular island Liu, P.L.-F.;Cho, Y.-S.;Briggs, M.J.;Kanoglu, U.;Synolakis, C.E.
  7. Proc. of Int. Sym: Waves-Physical and Numerical Modelling Numerical solutions of three-dimensional run-up on a circular island Liu, P.L.-F.;Cho, Y.-S.;Fujima, K.
  8. Computational fluid dynamics Roache, P.J.
  9. J. of Fluid Mechanics v.72 Scattering of surface waves by a conical island Smith, R.;Sprinks, T.
  10. EOS, Transactions v.74 The Flores island tsunamis Yeh, H.H.;Imamura, F.;Synolakis, C.E.;Tsuji, Y.;Liu, P.L.-F.;Shi, S.