International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
권호 표지
DOI QR코드

DOI QR Code

Field investigations on port non-tranquility caused by infra-gravity water waves

  • Published : 2010.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

Field investigations have been carried out in two 60-day stages on the surf beat low frequency waves in Anzali port, one of the main commercial ports in Iran, located in southwest coast of the Caspian Sea. The characteristics of significant water waves were measured at three metering stations in the sea, one at the entrance of the port and three in the basin. The measured data were inspected to investigate the surf beat negative effects on the tranquility of the port. Using field measurements and complementary numerical modeling, the response of the basin to the infra-gravity long waves was inspected for a range of wave frequencies. It was concluded that the water surface fluctuations in the port is strongly related to the incident wave period. The long waves with periods of about 45s were recognized as the worst cases for water surfaceperturbation in the port. For wave periods higher than the mentioned range, the order of fluctuation was generally low.

Keywords

References

  1. Badiee, P. Bohluli, A. and Zaker, H., 2004. Numerical modeling of penetration of long waves into the Anzali port in Iran. International Conference on Coasts, Ports, and Marine Structures, ICOPMAS, Tehran 27-29 November 2004.
  2. Baldock, T.E. Huntley, D.A. Bird, P.A.D. O’Hare, T.J. and Bullock, G.N., 2000. Breakpoint generated surf beat induced by bichromatic wave groups. Journal of Coastal Engineering, 39, pp. 213-242. https://doi.org/10.1016/S0378-3839(99)00061-7
  3. Baldck T.E. and O’Hare T.J., 2004. Energy transfer and dissipation during surf beat conditions. Proc. of 29th Conference on Coastal Engineering, Lisbon, Portugal, 19-24 September 2004.
  4. Ciriano, Y. Coco, G. Bryan, K.R. and Elgar, S., 2005. Field observations of swash zone infragravity motions and beach cusp formation. Journal of Geophysical Research, 110, C02018, DOI: 10.1029/2004JC002485.
  5. Dong, G. Ma, X. Xu, J., 2008. Experimental study of surf beat generated on a submerged sill. Proc. of the 8th ISOPE Pacific and Asia Offshore Mechanics Symposium, Bangkok, Thailand, 10-14 November 2008.
  6. Fujinawa, Y., 1979. Some properties of surf beats. Journal of the Oceanographical Society of Japan, 35, pp. 9-25. https://doi.org/10.1007/BF02108278
  7. Guza, R.T. Thornton, E.B. and Holman, R.A., 1985. Swash on steep and shallow beaches. Proc. of the 19th Conference on Coastal Engineering, ASCE, pp. 708-723.
  8. Henderson, S.M. and Bowen, A.J., 2003. Simulations of dissipative, shore-oblique infragravity waves. Journal of Physical Oceanography, 33, pp. 1722–1732.
  9. Herbers, T.H.C., Elgar, S. and Guza, R.T., 1995. Generation and propagation of infragravity waves. Journal of Geophysical Ressearch, 100(C12), pp. 24, 863–24, 872.
  10. Holland, K.T. Raubenheimer, B. Guza, R.T. and Holman, R.A., 1995. Runup kinematics on a natural beach, Journal of Geophysical Research, 100(C3), pp. 4985–4993.
  11. Janssen, T.T. Battjes, J.A. and Van Dongeren, A.R., 2002. Observation of long waves induced by short wave groups, Journal of Geophysical Research, 108(C8), pp. 3252-3264. https://doi.org/10.1029/2002JC001515
  12. Longuet-Higgins, M.S. and Stewart, R.W., 1964. Radiation stress in water waves: A physical discussion with applications. Deep Sea Research, 11, pp. 529-562.
  13. Mei, C.C. and Agnon, Y., 1989. Long-period oscillations in a harbor induced by incident short waves. Journal of Fluid Mechanics, 208, pp. 595-608. https://doi.org/10.1017/S0022112089002958
  14. Schaffer, H.A., 1993. Infragravity waves induced by short wave groups. Journal of Fluid Mechanics, 247, pp. 551-558. https://doi.org/10.1017/S0022112093000564
  15. Symonds, G. Huntley, D.A. and Bowen, A.J, 1982. Two dimensional surf beat: Long wave generation by a timevarying breakpoint. Journal of Geophysical Research, 87, pp. 492-498. https://doi.org/10.1029/JC087iC01p00492
  16. Smallman, J.V. and Cooper, A.J., 1989. Mathematical model for set-down in harbor. Journal of Coastal Engineering, 13, pp. 247-261. https://doi.org/10.1016/0378-3839(89)90051-3
  17. Smith G.G. and Mocke, G.P., 2002. Interaction between breaking/broken waves and infragravity-scale phenomena to control sediment suspension transport in the surf zone. Marine Geology, 187, pp. 329-345. https://doi.org/10.1016/S0025-3227(02)00385-7
  18. Tucker, M. J., 1950. Surf beats: Sea waves of 1 to 5 minute period, Proc. of Royal Society, London, Ser. A, 202, pp. 565-573.