Scale effects in the physical modelling of seabed scour

This report describes and comments on scale effects in the physical modelling of seabed scour around coastal and offshore man-made structures. It has been produced within the framework of the EC funded project Scour Around Coastal Structures (SCARCOST). The intention is to highlight the scaling problems that are faced in mobile bed studies of scouring, to comment on them and to refer to the latest finds from researchers who have looked at scale effects in particular problems. The report is not intended to provide an introduction to the scale modelling of waves or waves around structures with fixed beds, although the main hydrodynamics parameters are introduced as they are also important for mobile bed studies. The report concentrates on flow and scour processes, the areas covered by Task 1 of SCARCOST. The response of the bed is covered in Task 2 and is considered only briefly here.

[1]  Xueping Gao,et al.  THE CHARACTERISTICS OF SCOURING AND DEPOSITING IN FRONT OF VERTICAL BREAKWATERS BY BROKEN CLAPOTIS , 1998 .

[2]  Robert G. Dean,et al.  Undistorted Froude Model for Surf Zone Sediment Transport , 1986 .

[3]  Jørgen Fredsøe,et al.  Interaction Between Vibrating Pipe and Erodible Bed , 1988 .

[4]  Jørgen Fredsøe,et al.  Scour at the round head of a rubble-mound breakwater , 1997 .

[5]  Steven A Hughes,et al.  PHYSICAL MODELS AND LABORATORY TECHNIQUES IN COASTAL ENGINEERING , 1993 .

[6]  William G. McDougal,et al.  The Effects of Seawalls on the Beach: Part I, An Updated Literature Review , 1996 .

[7]  S Xie.  SCOURING PATTERNS IN FRONT OF VERTICAL BREAKWATERS , 1985 .

[8]  Isao Irie,et al.  LABORATORY REPRODUCTION OF SEABED SCOUR IN FRONT OF BREAKWATERS , 1984 .

[9]  Jørgen Fredsøe,et al.  INFLUENCE OF CROSS SECTION ON WAVE SCOUR AROUND PILES , 1993 .

[10]  Jørgen Fredsøe,et al.  WAVE SCOUR AROUND GROUP OF VERTICAL PILES , 1998 .

[11]  Turgut Sarpkaya,et al.  Force on a circular cylinder in viscous oscillatory flow at low Keulegan—Carpenter numbers , 1986, Journal of Fluid Mechanics.

[12]  Shinji Sato,et al.  Laboratory Study on Sand Transport Over Ripples Due to Asymmetric Oscillatory Flows , 1986 .

[13]  R. Deigaard,et al.  Mechanics Of Coastal Sediment Transport , 1992 .

[14]  S. L. Xie,et al.  Scouring patterns in front of vertical breakwaters and their influences on the stability of the foundation of the breakwaters , 1981 .

[15]  Van Rijn,et al.  Sediment transport; Part I, Bed load transport , 1984 .

[16]  John B. Herbich.  Seafloor scour : design guidelines for ocean-founded structures , 1984 .

[17]  H. W. Shen,et al.  Local Scour Around Cylindrical Piers , 1977 .

[18]  Tom O'Donoghue,et al.  Characteristics of Wave Reflection Spectra , 1998 .

[19]  Jørgen Fredsøe,et al.  The horseshoe vortex and vortex shedding around a vertical wall-mounted cylinder exposed to waves , 1997, Journal of Fluid Mechanics.

[20]  Steven A. Hughes,et al.  Midscale Physical Model Validation for Scour at Coastal Structures: Final Report , 1990 .

[21]  The Effects of Seawalls on the Beach: Part II, Numerical Modeling of SUPERTANK Seawall Tests , 1996 .

[22]  Steven A. Hughes,et al.  Wave-Induced Scour Prediction at Vertical Walls , 1991 .

[23]  K. A. Powell.  Toe scour at sea walls subject to wave action - a literature review , 1987 .

[24]  R. Hallermeier,et al.  Terminal settling velocity of commonly occurring sand grains , 1981 .

[25]  T. O'Donoghue,et al.  BEACH RESPONSE IN FRONT OF WAVE-REFLECTING STRUCTURES , 1997 .

[26]  Jørgen Fredsøe,et al.  Turbulent combined oscillatory flow and current in a pipe , 1998, Journal of Fluid Mechanics.

[27]  R. Soulsby.  Dynamics of marine sands , 1997 .

[28]  Kenji Oda,et al.  EXPERIMENTAL STUDY ON DEVELOPING PROCESS OF LOCAL SCOUR AROUND A VERTICAL CYLINDER , 1995 .

[29]  Jørgen Fredsøe,et al.  TIME SCALE OF SCOUR AROUND A VERTICAL PILE , 1992 .

[30]  Tom O'Donoghue,et al.  Wave phase shift at coastal structures , 1998 .