Numerical study on water waves and wave-induced longshore currents in Obak&#246;y coastal water

TANG Jun; LYU Yigang; SHEN Yongming

doi:10.1007/s13131-014-0515-5

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TANG Jun, LYU Yigang, SHEN Yongming. Numerical study on water waves and wave-induced longshore currents in Obaköy coastal water[J]. Acta Oceanologica Sinica, 2014, 33(9): 40-46. doi: 10.1007/s13131-014-0515-5

Citation:

TANG Jun, LYU Yigang, SHEN Yongming. Numerical study on water waves and wave-induced longshore currents in Obaköy coastal water[J]. Acta Oceanologica Sinica, 2014, 33(9): 40-46. doi: 10.1007/s13131-014-0515-5

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Numerical study on water waves and wave-induced longshore currents in Obaköy coastal water

doi: 10.1007/s13131-014-0515-5

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116023, China

Received Date: 2013-10-11
Rev Recd Date: 2014-01-24

Abstract

Abstract

In this paper, the water waves and wave-induced longshore currents in Obaköy coastal water which is located at the Mediterranean coast of Turkey were numerically studied. The numerical model is based on the parabolic mild-slope equation for coastal water waves and the nonlinear shallow water equation for the wave-induced currents. The wave transformation under the effects of shoaling, refraction, diffraction and breaking is considered, and the wave provides radiation stresses for driving currents in the model. The numerical results for the water wave-induced longshore currents were validated by the measured data to demonstrate the efficiency of the numerical model. Then the water waves and longshore currents induced by the waves from main directions were numerically simulated and analyzed based on the numerical results. The numerical results show that the movement of the longshore currents was different while the wave propagated to a coastal zone from different directions.
- coast hydrodynamics,
- water wave,
- mild-slope equation,
- wave-induced currents,
- numerical modeling

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References(22)

References

Balas L, İnan A, Yıldız İ. 2006. Numerical modelling of coastal currents. In: M. Gavrilova et al., eds. Computational Science and Its Applications-ICCSA. Berlin Heidelberg: Springer, 547-555

Chawla A, Özkan-Haller H T, Kirby J T. 1998. Spectral model for wave transformation and breaking over irregular bathymetry. Journal of Waterway, Port, Coastal, and Ocean Engineering, 124: 189-198

Cui Lei, Tang Jun. 2011. Numerical study on random waves and waveinduced long-shore currents at Leadbetter Beach. Journal of Marine Science and Technology, 19: 222-230

Dally W R, Dean R G, Dalrymple R A. 1985. Wave height variation across beaches of arbitrary profile. Journal of Geophysical Research: Oceans (1978-2012), 90: 11917-11927

Ding Pingxing, Kong Yazhen, Shi Fengyan. 1998. Radiation stress of water waves and its calculation. Journal of East China Normal University (in Chinese), 1: 82-87

Ebersole B A, Dalrymple R A. 1980. Numerical modeling of near-shore circulation. Coastal Engineering Proceedings, 1: 2710-2725

Grasmeijer B, Ruessink B. 2003. Modeling of waves and currents in the near-shore parametric vs. pr-obabilistic approach. Coastal Engineering, 49: 185-207

Iwata N. 1970. A note on the wave setup, longshore currents and undertows. Journal of Oceanography, 26: 233-236

Kirby J T. 1986a. Open boundary condition in parabolic equation method. Journal of Waterway, Port, Coastal, and Ocean Engineering, 112: 460-465

Kirby J T. 1986b. Rational approximations in the parabolic equation method for water waves. Coastal Engineering, 10: 355-378

Liang Bingchen, Lee Dongyong, Li Huajun, et al. 2010. Sensitivity study of the effects of wave-induced vertical mixing on vertical exchange processes. Journal of Hydrodynamics, 22: 410-418

Liang Bingchen, Zhao Hongping, Li Huajun, et al. 2012. Numerical study of three-dimensional wave-induced longshore current's effects on sediment spreading of the Huanghe River mouth. Acta Oceanologica Sinica, 31: 129-138

Longuet-Higgins M S. 1970. Longshore currents generated by obliquely incident sea waves: 1. Journal of Geophysical Research, 75: 6778-6789

Longuet-Higgins M S, Stewart R. 1962. Radiation stress and mass transport in gravity waves, with application to ‘surf beats'. Journal of Fluid Mechanics, 13: 481-504

Nayak S, Bhaskaran P K, Venkatesan R. 2012. Near-shore wave-induced setup along Kalpakkam coast during an extreme cyclone event in the Bay of Bengal. Ocean Engineering, 55: 52-61

Rusu L, Soares C G. 2010. Validation of two wave and nearshore current models. Journal of Waterway, Port, Coastal, and Ocean Engineering, 136: 19-27

Tang Jun, Cui Lei. 2010. Numerical study of pollutant transport in breaking random waves on mild slope zone. Procedia Environmental Sciences, 2: 274-287

Tang Jun, Shen Yongming, Cui Lei. 2008a. Modeling near-shore currents induced by irregular breaking wave. Journal of Coastal Research, SI52: 245-252

Tang Jun, Shen Yongming, Cui Lei, et al. 2008b. Numerical simulation of irregular water waves in coastal surf zones. Acta Oceanologica Sinica (in Chinese), 30: 147-152

Tang Jun, Shen Yongming, Shi Feng, et al. 2012. Numerical study of wave and longshore current interaction. Acta Oceanologica Sinica, 31: 10-17

Zheng Jinhai, Mase H, Li Tongfei. 2008. Modeling of random wave transformation with strong wave-induced coastal currents. Water Science and Engineering, 1: 18-26

Zheng Yonghong, Sheng Yongming, Qiu Dahong. 2000. Calculation of wave radiation stress in combination with parabolic mild slope equation. China Ocean Engineering, 14: 495-502

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