A One Line Numerical Model for Wind Wave Induced Shoreline Changes

2006-10-13
A numerical model is developed to determine wind wave induced shoreline changes by solving sand continuity equation and taking one line theory as a base, in existence of Igroins and T-groins, whose dimensions and locations may be given arbitrarily. The model computes the transformation of deep water wave characteristics up to the surf zone and eventually gives the result of shoreline changes with user-friendly visual outputs. Herein, a modification to a readily accepted one-line model as sheltering effect of groins on wave breaking and diffraction is introduced together with representative wave input as annual average wave height. Compatibility of the currently developed tool is tested by a case study and it is shown that the results, obtained from the model, are in good agreement qualitatively with field measurements.
Seventh International Congress on Advances in Civil Engineering, (October11-13, 2006 )

Suggestions

A one-line numerical model for shoreline evolution under the interaction of wind waves and offshore breakwaters
Artagan, Salih Serkan; Ergin, Ayşen; Department of Civil Engineering (2006)
A numerical model based on one-line theory is developed to evaluate the wind wave driven longshore sediment transport rate and shoreline change. Model performs wave transformation from deep water through the surf zone and computes the breaking parameters. The formula of longshore sediment transport rate used in the numerical model is selected as a result of comparative studies with the similar expressions and the field measurements. Offshore breakwater module of the numerical model is developed to compute t...
An Energetic Type Model for the Cross shore Distribution of Total Longshore Sediment Transport Rate
Baykal, Cüneyt; Güler, Işıkhan (2012-07-06)
This paper presents an energetic-based simple approach for the computation of cross-shore distribution of total longshore sediment transport (LST) rates. The proposed approach (Baykal 2012) follows similar assumptions with the given formula of Bayram et al. (2007) for the total LST rate (Qlst,t) across the surf zone and is applied to investigate the relation between the rate of dissipation in wave energy flux due to wave breaking and total longshore sediment flux using the available laboratory measurements ...
New Analytical Solution for Nonlinear Shallow Water-Wave Equations
AYDIN, BARAN; Kanoğlu, Utku (2017-08-01)
We solve the nonlinear shallow water-wave equations over a linearly sloping beach as an initial-boundary value problem under general initial conditions, i.e., an initial wave profile with and without initial velocity. The methodology presented here is extremely simple and allows a solution in terms of eigenfunction expansion, avoiding integral transform techniques, which sometimes result in singular integrals. We estimate parameters, such as the temporal variations of the shoreline position and the depth-av...
A discontinuous subgrid eddy viscosity method for the time-dependent Navier-Stokes equations
Kaya Merdan, Songül (Society for Industrial & Applied Mathematics (SIAM), 2005-01-01)
In this paper we provide an error analysis of a subgrid scale eddy viscosity method using discontinuous polynomial approximations for the numerical solution of the incompressible Navier-Stokes equations. Optimal continuous in time error estimates of the velocity are derived. The analysis is completed with some error estimates for two fully discrete schemes, which are first and second order in time, respectively.
A RANDOM-FIELD MODEL FOR THE ESTIMATION OF SEISMIC HAZARD
Yücemen, Mehmet Semih (Elsevier BV, 1993-10-01)
A stochastic framework is developed, in terms of the theory of homogeneous random functions, to estimate the seismic hazard associated with linearly extending seismic sources. The formulation is carried out in the space-time domain. An earthquake having at least a magnitude of m is assumed to occur whenever the total strain energy accumulated over the potential rupture plane exceeds the energy level corresponding to this magnitude, m. An alternative formulation, in which an earthquake is generated when the ...
Citation Formats
A. Ergin, I. Güler, A. C. Yalçıner, and C. Baykal, “A One Line Numerical Model for Wind Wave Induced Shoreline Changes,” presented at the Seventh International Congress on Advances in Civil Engineering, (October11-13, 2006 ), İstanbul, Türkiye, 2006, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/80360.