Hydrodynamics of Vertical-Inclined Partially Immersed Thin Breakwater


(*) Corresponding author


Authors' affiliations


DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)

Abstract


In the present study, wave interaction with a fixed, partially immersed, vertical-inclined, thin breakwater (TB) is investigated numerically. Numerical results concerning wave transmission, reflection, dissipation for the vertical thin barrier case are well compared with experimental results by Isaacson et al. (1998), (impermeable-permeable thin breakwater) revealing the credibility of the wave model. Three different draughts of the vertical structure are examined for a range of wave conditions in order to study the effects off the breakwater geometry and wave conditions.. The effects of the inclination of the breakwater on its hydrodynamic characteristics (wave transmission, reflection, dissipation, velocity and turbulence kinetic energy) are also investigated. Computed velocities and turbulence kinetic energy in the vicinity of the structure indicate the effects of the breakwater inclination on the flow pattern and the turbulence structure.
Copyright © 2018 Praise Worthy Prize - All rights reserved.

Keywords


Semi-Immersed Inclined Breakwater; Special Breakwater; Wave Reflection and Transmission; RANS Solver

Full Text:

PDF


References


E. Koutandos, Th. Karambas and C. Koutitas, Floating breakwater response to waves action using a Boussinesq model coupled with a 2dv elliptic solver, Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, vol. 130:243-255, 2004.

E. Koutandos, Hydrodynamic analysis of a skirt breakwater., Journal of Maritime Engineering, ICE, vol. 160: 121-133, 2007.

E. Koutandos, P. Prinos and X. Gironella, Floating breakwaters under regular and irregular wave forcing-Reflection and transmission characteristics, Journal of Hydraulic Research, IAHR, vol. 43, 174-188, 2005.

R. Wiegel, Transmission of waves past a rigid vertical thin barrier, Journal of Waterways and Harbors Division, ASCE, vol. 86, paper 2413, 1960.

R. Wiegel, Closely spaced piles as a breakwater, Dock and Harbor Authority, vol. 42, 150, 1961.

D. Kriebel, Vertical wave barriers: wave transmission and wave forces, 23rd Coastal Engineering Conference, ASCE, vol. 2, pp. 1313-1326, 1992.

P. Liu, M. Abbaspour, Wave scattering by a rigid thin barrier, Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, vol. 108: 479-491, 1982.

M. Reddy, S. Neelamani, Wave transmission and reflection characteristics of a partially immersed rigid vertical barrier, Ocean Engineering , vol. 19 : 313-325, 1992.

I. Losada, M. Losada, A. Roldan, Propagation of oblique incident waves past rigid vertical thin barriers, Applied Ocean Research, vol. 14: 191-199, 1992.

M. Losada, I. Losada and A. Roldan, Propagation of oblique incident modulated waves past rigid, vertical, thin barriers, Applied Ocean Research, vol. 15: 305-310, 1993.

M. Losada, I. Losada and R. Losada, Wave spectrum scattering by vertical thin barriers, Applied Ocean Research, Vol. 16:123-128, 1994.

K. Hagiwara, Analysis of upright structure for wave dissipation using integral equation., 19th Coastal Engineering Conference, ASCE, vol. 3, pp. 2810-2826, 1984.

G. Bennet, P. McIver and J. Smallman, A mathematical model of a slotted wavescreen breakwater, Coastal Engineering, Vol. 8: 231-249, 1993.

E. Tolba, Behaviour of floating breakwaters under wave action, Ph.D. dissertation, Suez Canal University, 1998.

M. Isaacson, S. Bhat, Wave propagation past a pile-restrained floating breakwater, Int. J. of Offshore and Polar Engineering, vol. 8: 265-269, 1998.

M. Isaacson, S. Premasiri and G. Yang, Wave interactions with vertical slotted barriers, Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, vol. 12: 479-491, 1998.

Isaacson, M., Baldwin, J., Premasiri, S., Yang, G. (1999). Wave interactions with double slotted barriers. Applied Ocean Research, 21, 81-91.

C. Christian, Floating breakwaters for small boat marina protection, 27th Coastal Engineering Conference, vol. 3, pp. 2268-2277, 2000.

S. Neelamani, M. Vedagiri,, Wave interaction with partially immersed twin vertical barriers, Ocean Engineering, vol. 20: 215-238, 2002.

E. Koutandos, Double thin barriers under water wave forcing, Journal of Marine and Environmental Engineering, vol. 9 : 99-113, 2009.

E. Mansard, E. Funke, The measurement of incident and reflected spectra using a least squares method, 17th Coastal Engineering Conference, ASCE, vol. 1, pp. 154-172, 1980.

L. Liu, P. Lin, A numerical model for breaking waves: The Volume of Fluid Method, Research Report. No. CACR-97-02, Center for Applied Coastal Research, Ocean Engineering Laboratory, University of Delaware.

C. Hirt, B. Nichols, Volume of Fluid (VOF) Method for the Dynamics of Free Boundaries, Journal of Computational Physics, vol. 39: 201-225, 1981.

A. Chorin, Numerical solution of the Navier-Stokes equations, Math. Comp., vol. 22: 745-762, 1968.

A. Chorin, On the convergence of discrete approximations of the Navier-Stokes equations, Math. Comp., vol. 23: 341-353,


Refbacks

  • There are currently no refbacks.


Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize