SMS:BOUSS-2D Calculators

Wave Characteristics Calculator

File:BOUSS 2D Calc Wave.jpg

BOUSS-2D Calculators dialog showing the Wave Characteristics tab

• Input Wave Characteristics

• Period, T
• Depth, h
• Average Wave Height, H

• Calculated Wave Characteristics

• Wavelength, L
• Wave Number, k
• Celerity, C
• Group Velocity, Cg
• Angular Velocity
• Maximum Wave Height
• Steepness

Run-up and Overtopping Calculator

File:BOUSS 2D Calc Runup.jpg

BOUSS-2D Calculators dialog showing the 1D Runup and Overtopping tab

To assist the user in the design of coastal structures, the interface includes a one-dimensional wave run-up and overtopping calculator. This utility runs a 1D simulation with BOUSS-1D based on user specified parameters. To access the 1D Run-up and Overtopping calculator select the Calculators menu item in the BOUSS2D menu to bring up the BOUSS-2D Calculators dialog. The 1D Run-up and Overtopping calculator is a tab in the BOUSS-2D Calculators dialog. The BOUSS-2D Calculators dialog is always in the BOUSS-2D interface.

Input to the 1D Run-up and Overtopping calculator is organized into a spreadsheet. The first row of the input parameters spreadsheet is fixed and will contain the column titles given in the table below. The remaining rows contain the input parameters as shown in the dialog. The names and units columns are read-only. The value column is editable.

Parameter	Value	Units
Wave Type	Choose between “Regular” and “Irregular”. Titles of the wave height & period change depending on wave type. Default is “Regular”	-
Wave Height(H)(regular) or Significant Wave Height (Hs) (irregular)	User must specify	(m)
Wave Period(T) (regular) or Peak Period (Tp) (irregular	User must specify	(sec)
Depth at Toe of Breakwater (ds)	User must specify	(m)
Crest Elevation above Still Water (Zc)	User must specify	(m)
Side Slope (m)	User must specify	-
Offshore Slope (p)	User must specify	-
Chezy Roughness Coefficient	User must specify	m1/2/sec

Output of the calculator is displayed on the bottom portion of the dialog after the calculate button is clicked. The output is organized into a spreadsheet. When the dialog first comes up, the values in the output parameters spreadsheet are blank. The output parameters calculated are:

1. Run-up, R. This value corresponds to Rmax for regular waves and R2% for irregular waves. The units of run-up are in meters
2. Overtopping, Q. A single overtopping value will be computed. The units for overtopping are (m3/s)/m.