Intercomparison of coastal area morphodynamic models

Abstract Five different coastal area morphodynamic models have been set up to run on the same offshore breakwater layout and an intercomparison carried out on the hydrodynamic and morphodynamic output produced by each scheme. In addition, the predicted morphodynamics was checked against available laboratory and field data. It is concluded that the models are capable of producing realistic estimates for the dominant morphodynamic features associated with offshore breakwaters. Coupling of the wave, current and sediment transport components of each scheme is shown to yield bathymetry which attains a state of equilibrium, unlike models which are based on the initial transport field only.

[1]  T. Sunamura,et al.  A study on depositional shoreline forms behind an island , 1987 .

[2]  B. O'CONNOR,et al.  Intercomparison of wave-driven current models , 1997 .

[3]  M. Stive,et al.  Quasi-3D Modelling of Nearshore Currents , 1987 .

[4]  C. A. Fleming,et al.  APPLICATION OF A SEDIMENT TRANSPORT MODEL , 1976 .

[5]  J. Berkhoff,et al.  Mathematical models for simple harmonic linear water waves: Wave diffraction and refraction , 1976 .

[6]  Brian A. O'Connor,et al.  MATHEMATICAL MODELLING OF WAVE-INDUCED NEARSHORE CIRCULATIONS , 1986 .

[7]  D. Myrhaug,et al.  Wave-current interaction within and outside the bottom boundary layer , 1993 .

[8]  Sam S. Y. Wang.  Sediment Transport Modeling , 1989 .

[9]  N. Booij,et al.  A prediction model for stationary, short-crested waves in shallow water with ambient currents , 1989 .

[10]  J. Kamphuis,et al.  Sediment transport in the surf zone : A quasi 3-D numerical model , 1993 .

[11]  Richard Silvester,et al.  ACCRETION BEHIND SINGLE OFFSHORE BREAKWATER , 1990 .

[12]  Brian A. O'Connor,et al.  Mean bed friction of combined wave/current flow , 1988 .

[13]  Jørgen Fredsøe,et al.  Turbulent Boundary Layer in Wave‐current Motion , 1984 .

[14]  Dov Sergiu Rosen,et al.  Sedimentological Influences of Detached Breakwaters , 1982 .

[15]  Per A. Madsen,et al.  An efficient finite-difference approach to the mild-slope equation , 1987 .

[16]  W. Munk.  THE SOLITARY WAVE THEORY AND ITS APPLICATION TO SURF PROBLEMS , 1949 .

[17]  Identification of Some Relevant Processes in Coastal Morphological Modelling , 1995 .

[18]  J. A. Roelvink,et al.  Medium-term 2DH coastal area modelling , 1993 .

[19]  E. W. Bijker.  LITTORAL DRIFT AS FUNCTION OF WAVES AND CURRENT , 1968 .

[20]  Nicholas C. Kraus,et al.  Shoreline Response to a Single Transmissive Detached Breakwater , 1991 .

[21]  L. Hamm,et al.  A New LAX-WENDROFF Algorithm to Solve the Bed Continuity Equation With Slope Effect , 1994 .

[22]  Jørgen Fredsøe,et al.  SUSPENDED SEDIMENT IN THE SURF ZONE , 1986 .

[23]  M. Abbott.  Computational Hydraulics: Elements of the Theory of Free Surface Flows , 1979 .

[24]  J. Kirby.  Rational approximations in the parabolic equation method for water waves , 1986 .

[25]  R. Nairn.  Prediction of cross-shore sediment transport and beach profile evolution , 1990 .

[26]  P. Hamilton.  Transport Models for Inland and Coastal Waters , 1982 .

[27]  Hsiang Wang,et al.  A TIME—DEPENDENT NEARSHORE MORPHOLOGICAL RESPONSE MODEL , 1993 .

[28]  John B. Herbich,et al.  Effects of breakwater spacing on sand entrapment , 1986 .

[29]  Robert A. Dalrymple,et al.  Offshore Breakwaters in Laboratory and Field , 1987 .

[30]  D. Walstra,et al.  MORPHOLOGICAL MODELLING OF KETA LAGOON CASE , 1995 .

[31]  Mark B. Gravens,et al.  Development of Detached Breakwater Design Criteria Using a Shoreline Response Model , 1992 .

[32]  J. A. Battjes,et al.  ENERGY LOSS AND SET-UP DUE TO BREAKING OF RANDOM WAVES , 1978 .