SMS:BOUSS-2D Graphical Interface

The BOUSS-2D graphical interface includes tools to assit with creating, editing, and debugging a BOUSS-2D model.

BOUSS-2D Menu

File:BOUSS GenerateArcs.jpg

Example of the BOUSS-2D Generate Arcs dialog.

The following menu commands are available in the BOUSS-2D simulation right-click menu:

Generating Arcs along land boundary

Opens a dialog that will create arcs in a damping or porosity coverage from an existing grid or scatterset.

Generating Arcs along open boundary

Opens a dialog that will create arcs in a damping or porosity coverage from an existing grid or scatterset.

Calculators

Brings up a pop up menu to access theWave Conditions Calculator (see appendix A) as well as the Run-up/Overtopping Estimator.

Probe Manager

Brings up the Probe Manager to control time series output from the model.

Model Control…

Brings up the Model Control dialog to specificy model parameters.

Model Check …

Launches the Model Check to search for common problems.

Export BOUSS-2D

When the BOUSS-2D files are exported a new directory under the project called “BOUSS-2D” is created. In this directory, the grids will be written to. Also a new directory under the “BOUSS-2D” will be created and it will be the name of the simulation. In this directory, the *.par file(link to Parameter file) can be found.

Run BOUSS-2D

Brings up a dialog that allows checking what executable of BOUSS-2D should be run and then runs the model with the currently loaded simulation. As the model runs, a dialog monitors progress of the model and gives the status messages. When the run is complete, the spatial solutions are read in for analysis and visualization.

Save Project, Export, and Run BOUSS-2D

Performs the processes of saving the project, exporting BOUSS-2D files, and launching the BOUSS-2D model run.

Obsolete Commands

The following commands are no long in use in current versions of SMS but may appear in older versions.

Spectral Energy

Brings up the Spectral Energy dialog to define/view wave energy spectra. Generally, BOUSS-2D will generate wave conditions internally, but a spectrum may be input. This command also allows visualizing wave spectra that are generated inside of the model.

Assign BC

Used to assign damping, porosity, or wave maker conditions along a selected cell string(s). Using this command will open the BOUSS-2D Boundary Conditions dialog.

Assign Cell Attributes

Selected cells can be defined as land or water

Polygon Attributes

Polygon Attributes dialog

The Polygon Attributes dialog in BOUSS-2D is used to set the attributes for feature polygons before converting to a grid. It is reached by double-clicking on a polygon in an BOUSS-2D coverage. Attributes that can be specified for each polygon include:

• Polygon Type

• Land – Specifies the area as being land cells when the coverage is used to create a grid.
• Ocean – Specifies the area as being ocean cells when the coverage is used to create a grid.

2D Grid Helps

The BOUSS-2D Map → 2D Grid Helps dialog

When creating a Cartesian grid from a BOUSS-2D map coverage, the Map → 2D Grid dialog contains and addition option: the Grid Helps button at the bottom of the dialog. Clicking the Grid Helps button will open the BOUSS-2D Map → 2D Grid Helps dialog. An appropriate cell size depends on the wavelength of the waves being modeled. Use the BOUSS-2D Map → 2D Grid Helps dialog to get help with determining a cell size.

Model Control

The BOUSS-2D Model Control dialog is used to setup the options that apply to the simulation as a whole. These options include time controls, run types, output options, global parameters, print options and other global settings.

Wave Maker

File:BOUSS WaveGeneratorProp.jpg

The BOUSS-2D Wave Generator Properties dialog.

A wave maker is created be position a point in a wave maker coverage in the Map module. BOUSS-2D generates waves emanating from this point. Right-clicking on the point and selecting the Attributes will open the BOUSS-2D Wave Generator Properties dialog where the properties of the wave are defined. The dialog contains the following three sections:

Wave Simulation Parameters

• Type – Options include "Regular", "Irregular Unidirectional", and "Irregular Multidimensional". Selecting "Irregular Multidimensional" will activate the Spread option, Standard dev., and Maximum cutoff fields under Directional Parameters.
• Surface Elev. Time Series – Can be "Synthesize" or "From File".
• Spectrum source – Can be "From Parameters" or "From File".
• Random number seed –
• Series Duration –

Spectral Parameters

• Type – Available when the "Irregular Unidirectional" or "Irregular Multidimensional" type has been selected. Options include:
  • "TMA Spectrum (Shallow Water)"
  • "JONSWAP Spectrum"
  • "Bretschneider (ITTC) Spectrum"
  • "Pierson-Moskowitz Spectrum"
  • "Ochi-Hubble Double Peak Spectrum"

• Option – Contains specific options for the "JONSWAP Spectrum" and "Pierson-Moskowitz Spectrum" types.
  • "Specify hs and Tp"
  • "Specify wind speed and fetch distance"
  • "Specify wind speed 19.5 m above sea level"
  • "Specify significant wave height"
  • "Specify spectral peak period"

• Wave parameters – This spreadsheet allows setting parameters for each wave run. Available parameters depend on the selected type. These options can include:
  • Wave Height
  • Wave Period
  • Number of Wave Cycles
  • Sig. Wave Height
  • Peak Wave Period
  • hs. Low/High Freq.
  • Tp. Low/High Freq.
  • Gamma
  • Wind Speed @ 19.5 m
  • Spectral Peak Period
  • Min. Wave Period
  • Max. Wave Period
  • Tidal Offset
  • Storm Duration
  • Rescale Spectrum
• Add – Create an additional wave column in the spreadsheet.
• Delete – Remove a selected wave column from the spreadsheet.
• Calculate Min Period – Opens a data selection window where a dataset can be specified.

Directional Parameters

• Projection –
• Spread option – Options include "Wrapped Normal Distributions" and "Cosine Power Function". This field is only active when the wave simulation Type is set for "Irregular Multidirectional".
• Standard dev. – Active when the wave simulation Type is set for "Irregular Multidirectional".
• Maximum cutoff – Active when the wave simulation Type is set for "Irregular Multidirectional".
• Wave angle – This is the angle the wave will move from the wave point.

Running the Model

The BOUSS-2D files are written automatically with the SMS project file or can be saved separately using the File | Save BOUSS-2D or File | Save As menu commands. See BOUSS-2D Files for more information on the files used for the BOUSS-2D run.

BOUSS-2D can be launched from SMS using the Run BOUSS-2D right-click menu command. A check of some of the common problems called the Model Checker is done each time the model is launched, or by selecting the Model Check right-click menu command.

Related Topics

• BOUSS-2D
• Create a 2D Cartesian grid