A Study on the Numerical Model of Wave Induced Current around Nearshore Structure

연안역 구조물 주위에서의 해빈류의 수치해석에 관한 연구

  • 민병형 (동아대학교, 토목공학과) ;
  • 이상화 (동아대학교, 토목공학과) ;
  • 김인철 (동아대학교, 토목공학과)
  • Published : 1991.06.01

Abstract

This study is to predict accurately the wave induced current accuring by the radiation stress which acts as the driving force around Nearshore structure. For the wave induced current, the depth integrated and time averaged governing equation of an unsteady nonlinear form is derived from the continuity and momentum equation of an incompressible fluid. Numerical solutions are obtained by a finite difference method for the governing equation. In the vicinity of a structure, computed flow patterns show good agreement with the hydraulic experimental data. The numerical results obtained by neglecting the convective term show a large change of alongshore and offshore current.

Keywords

References

  1. 서울대학교 공학박사 학위논문 연안역 구조물 주위에서의 파랑과 해빈류의 수치모혀에 관한 연구 김인철
  2. 해안구조물 적정설계조건 결정기법의 체계화 연구(Ⅱ) BSPGOOO64-195-2 해양연구소
  3. J. Geophys. Res. v.67 no.7 A Note on the Dynamics of Rip currents Arthur,R.S.
  4. Ocean Eng. Rep. No.3 Numerical models for the Prediction of Wave Setup and Nearshore Circulation Birkemeir,W.A.;R.A.Dalrymple
  5. Coastal Eng. v.9 A Practical Alternative to the Mild Slope Wave Equation Copeland,G.J.M.
  6. Ph. D. Thesis, Univ. of Liverpool Numerical Model for the Propagation of Short Gravity Waves and the Resulting Circulation around Nearshore Structures Copeland,G.J.M.
  7. Ph. D. Thesis, Univ. of Liverpool Wave-Induced Nearshore Currents Da,Sila Kima,S.S.L.
  8. Proc. 17th Coastal ENg. Conf. Numerical Modeling of Nearshore Circulation Ebersole,B.A.;R.A.Dalrymple
  9. RM-5295-PR Aspects of a Computational Model for Long-Period Water Wave Propagation Leendertse,J.J.
  10. J. of Geophy. Res. v.75 Longshore Currents Genterated by Obliquely Incident Sea Waves Longuet-Higgins,M.S.
  11. Deep Sea Res. v.11 Radiation Stresses in Water Waves, a Physical Discussion with Application Longuet-Higgins,M.S.;R.W.Stewart
  12. Rep. Electric Central Res. Inst. No 384041(in Japanese) Two Dimensional Wave Calculation Method Based in Unsteady Mild Slope Equation Maruyama,K.;R.Kajima
  13. Proc. 29th Japanese Conf. on Coastal Eng. JSCE v.28 Numerical Simulation of the Nearshore Circulation Nishimura,H.
  14. Rep. No. TC-149-4, Terta Tech. Inc. Nearshore Circulations under Sea Breeze Conditions and Wave-Current Interactions in the Surf Zone Noda,E.K.;C.J.Sonu;V.C.Rupert;J.I.Collins
  15. Camb. Univ. Press The Dynamic of the Upper Ocean Phillips,O.M.
  16. Trans. Am. Geophys. Union v.30 no.3 The prdiction of longshore currents Putnam,J.A.;W.H.Munk;M.A.Traylor
  17. Japanese Conf. on Coastal Eng. JSCE A Study on the Wave Induced Current and the Change of Topography around Estuary Sawaragi,T.;J.S.Lee;I.Deguchi
  18. Trans. Am. Geophs. Union v.31 no.4 Nearshore Circulation Related to Bottom Topography and Wave Refraction Shepard,F.P.;D.L.Inman
  19. J. of Geophy. Res. v.77 no.18 Field Observation of Nearshore Circulation and Meandering Currents Sonu,C.J.
  20. Proc. 29th Japanese Conf. on Coastal Eng., JSCE On the Waves and Nearshore Currents around a Structure Watanabe,A.;M.Shiozaki