Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Effects of Wave-Current Interactions on 3-D Flow Fields in a River Mouth

하구에서 파랑-흐름 상호작용이 3차원 흐름특성에 미치는 영향

  • Lee, Woo-Dong (Institute of Marine Industry, Gyeongsang National University) ;
  • Jeon, Ho-Seong (Research Group of Green River, Korea Institute of Civil Engineering and Building Technology) ;
  • Park, Jong-Ryul (Disaster Information Research Division, National Disaster Management Research Institute) ;
  • Hur, Dong-So (Department of Ocean Civil Engineering, Gyeongsang National University)
  • 이우동 (국립경상대학교 해양산업연구소) ;
  • 전호성 (한국건설기술연구원 그린리버연구단) ;
  • 박종률 (국립재난안전연구원 재난정보연구실) ;
  • 허동수 (국립경상대학교 해양토목공학과)
  • Received : 2016.09.09
  • Accepted : 2016.12.16
  • Published : 2017.02.28
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Abstract

Most of the studies on the hydraulic characteristics of wave-current interaction have used 2-D hydraulic experiments or 2-D numerical simulations. However, it is difficult to understand the wave-current interaction found in actual estuaries using these. Therefore, a numerical water tank was constructed in this study to perform simulations involving a 3-D river mouth. The result showed a change in the water surface at the river mouth from the wave-current interaction. With an increase in the ratio ($V_c/C_i$) between the river current and wave celerity, the wave height and mean water level of the river increased at the wave and current meeting point. A higher $V_c/C_i$ caused a stronger wave-current interaction and increased the turbulence kinetic energy. Thus, the wave height attenuation became larger by the wave-current interaction with a higher $V_c/C_i$. In addition, it was possible to understand the flow characteristics in the vicinity of the river mouth as a result of the wave-current interaction using the mean flow and mean time-averaged velocity at the mid-cross section of river.

Keywords

References

  1. Baddour, R.E., Song, S., 1990. On the Interaction between Waves and Currents. Ocean Engineering, 17, 1-21. https://doi.org/10.1016/0029-8018(90)90011-T
  2. Brackbill, J.U., Kothe, D.B., Zemach, C., 1992. A Continuum Model for Modeling Surface Tension. Journal of Computational Physics, 100, 335-354. https://doi.org/10.1016/0021-9991(92)90240-Y
  3. Christensen, E.D., 2006. Large Eddy Simulation of Spilling and Plunging Breakers. Coastal Engingeering, 53, 463-485. https://doi.org/10.1016/j.coastaleng.2005.11.001
  4. de Brye, B., de Brauwere, A., Gourgue, O., Karna, T., Lambrechts, J., Comblen R., Deleersnijder, E., 2010. A Finite-Element, Multi-Scale Model of the Scheldt Tributaries, River, Estuary and ROFI. Coastal Engineering, 57, 850-863. https://doi.org/10.1016/j.coastaleng.2010.04.001
  5. Germano, M., Piomelli, U., Moin, P., Cabot, W.H., 1991. A Dynamic Subgrid-Scale Eddy Viscosity Model. Physics of Fluids, 3, 1760-1765. https://doi.org/10.1063/1.857955
  6. Hur, D.S., Lee, W.D., Bae, K.S., 2008. On Reasonable Boundary Condition for Inclined Seabed/Structure in Case of the Numerical Model with Quadrilateral Mesh System. Journal of The Korean Society of Civil Engineers, 28(5B), 591-594.
  7. Isaasson, M., Cheung, K.F., 1993. Time-Domain Solution for Wave-Current Interactions with a Two-Dimensional Body. Applied Ocean Research, 15, 39-52. https://doi.org/10.1016/0141-1187(93)90031-R
  8. Iwasaki, T., Sato, M., 1971. Energy Damping of Wave Propagating Against Currents (2). Proceedings of Coastal Engineering Conference, JSCE, 18, 55-59(in Japanese). https://doi.org/10.2208/proce1970.18.55
  9. Kim, K.H., Lee, H.J., Kim, W.S., 2008. The Local Scour around Submarine Pipelines in the Interaction Region Combined with Waves and Currents. Journal of Korean Society of Coastal and Ocean Engineers, 20(5), 510-521.
  10. Komatsu, K., 2005. Fundamental Study on Wave-Current Interaction. Master's Thesis, Nagoya University, Japan (in Japanese).
  11. Lee, W.D., 2012. Three-Dimensional Hydrodynamic Characteristics on Wave-Current Interaction with Density Difference in the Vicinity of a River Mouth. Ph.D. Thesis, Nagoya University, Japan.
  12. Lee, W.D., Hur, D.S., 2014. Development of a 3-D Coupled Hydro-Morphodynamic Model between Numerical Wave Tank and Morphodynamic Model under Wave-Current Interaction. Journal of the Korean Society of Civil Engineers, 34, 1463-1476. https://doi.org/10.12652/Ksce.2014.34.5.1463
  13. Lee, W.D., Hur, D.S., 2016. Analysis on Mechanism of Wave Attenuation under Wave-Current Interaction. Journal of the Korean Society of Civil Engineers, 36(4), 645-650. https://doi.org/10.12652/Ksce.2016.36.4.0645
  14. Lee, W.D., Mizutani, N., Hur, D.S., 2011. Effect of Crossing Angle on Interaction between Wave and Current in the River Mouth. Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering), 67, 256-261(in Japanese).
  15. Lee, W.D., Mizutani, N., Hur, D.S., 2012a. Charactertictis of Wave Ppropagation under Wave-Current Interaction with Density Difference between Wavne and Current. Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering), 68, 774-779(in Japanese).
  16. Lee, W.D., Mizutani, N., Hur, D.S., 2012b. An Experimental Study on Spatial Distribution of Wave Heights and Velocities under Wave-Current Interaction in an Estuary. Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering), 68, 431-435(in Japanese).
  17. Lesser, G.R., Roelvink, J.A., van Kester, J.A.T.M., Stelling, G.S., 2004. Development and Validation of a Three-Dimensional Morphological Model. Coastal Engineering, 51, 883-915. https://doi.org/10.1016/j.coastaleng.2004.07.014
  18. Lilly, D.K., 1992. A Proposed Modification of the Germano Subgrid-Scale Closure Method. Physics of Fluids A, 4, 633-635. https://doi.org/10.1063/1.858280
  19. Lin, M.C., Hsiao, S.S., 1994. Boundary Element Analysis of Wave-Current Interaction around a Large Structure. Engineering Analysis with Boundary Elements, 14, 325-334. https://doi.org/10.1016/0955-7997(94)90062-0
  20. Mizutani, N., Hur, D.S., Maeda, Y., 2002. Numerical Analysis of Nonlinear Wave-Current Interaction in Side Harbor. Proceedings of Coastal Engineering Conference, JSCE, 49, 51-55(in Japanese). https://doi.org/10.2208/proce1989.49.51
  21. Olabarrieta, M., Medina, R., Castanedo, S., 2010. Effects of Wave-Current Interaction on the Current Profile. Coastal Engineering, 57, 643-655. https://doi.org/10.1016/j.coastaleng.2010.02.003
  22. Sakai, S., Saeki, H., 1984. Effects of Opposing Current on Wave Transformation on Sloping Sea bed. Proceedings of the 19th International Conference on Coastal Engineering, ICCE, ASEC, 1219-1232.
  23. Shi, F., Dalrymple, R. A., Kirby, J.T., Chen, Q., Kennedy, A., 2001. A Fully Nonlinear Boussinesq Model in Generalized Curvilinear Coordinates. Coastal Engineering, 42, 337-358. https://doi.org/10.1016/S0378-3839(00)00067-3
  24. Smagorinsky, J., 1963. General Circulation Experiments with the Primitive Rquations. I. The Basic Experiment. Monthly Weather Review, 91(3), 99-164. https://doi.org/10.1175/1520-0493(1963)091<0099:GCEWTP>2.3.CO;2
  25. Smith, J.M., Seabergh, W.C., Harkins, G.S., Briggs, M.J., 1998. Wave Breaking on a Current at an Idealized Inlet. Technical report, CHL-98-31, US Army Corps of Engineers.
  26. Sutherlanda, J., Walstrab, D.J.R., Cheshera, T.J., van Rijn, L.C., Southgate, H.N., 2004. Evaluation of Coastal Area Modelling Systems at an Estuary Mouth. Coastal Engineering, 51, 119-142. https://doi.org/10.1016/j.coastaleng.2003.12.003
  27. Son, S., Lynett, P.J., 2014. Interaction of Dispersive Water Waves with Weakly Sheared Currents of Arbitrary Profile. Coastal Engineering, 90, 64-84. https://doi.org/10.1016/j.coastaleng.2014.04.009
  28. Teles, M.J., Pires-Silva, A.A., Benoit, M., 2013. Numerical Modelling of Wave Current Interactions at a Local Scale. Ocean Modelling, 68, 72-87. https://doi.org/10.1016/j.ocemod.2013.04.006
  29. Umeyama, M., 2005. Reynolds Stresses and Velocity Distributions in a Wave-Current Coexisting Environment. Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, 131, 203-212. https://doi.org/10.1061/(ASCE)0733-950X(2005)131:5(203)
  30. Zhao, R., Faltinsen, O.M., 1988. Interaction between Waves and Current on a Two-Dimensional Body in the Free Surface. Applied Ocean Research, 2, 87-99.