Summary
Also known as
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Model type
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Single
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Model part of larger framework
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Note on status model
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Date note status model
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Technical specs
Supported platforms
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Unix, Linux
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Other platform
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Programming language
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C
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Other program language
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Code optimized
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Single Processor
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Multiple processors implemented
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Nr of distributed processors
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Nr of shared processors
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Start year development
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2000
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Does model development still take place?
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Yes
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If above answer is no, provide end year model development
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Code development status
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When did you indicate the 'code development status'?
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Model availability
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As code
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Source code availability (Or provide future intension)
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Through owner"Through owner" is not in the list (Through web repository, Through CSDMS repository) of allowed values for the "Source code availability" property.
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Source web address
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Source csdms web address
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Program license type
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GPL v2
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Program license type other
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Memory requirements
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Typical ratio: 2,000,000 nodes requires 1 Gbyte
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Typical run time
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Anywhere from minutes to days depending on the resolution
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In/Output
Describe input parameters
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Input parameters:
* Geometrical parameters: Nx, Ny, domain size
* Flow Parameters: Reynolds, Peclet
* Particle Parameters: Settling velocities.
The complete list of input parameters is set and described in the file input.inp
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Input format
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ASCII
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Other input format
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Describe output parameters
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It can output local velocity, vorticity, concentration, stream-function, and all derivatives of velocity necessary to calculate dissipation, viscous momentum diffusion, kinetic energy flux, work by pressure forces, and change in kinetic energy. These quantities are written out in a binary file.
It also has routines for calculating the local height profile and tip position of gravity currents and internal bores, which are outputted every time step and stored as ASCII txt files.
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Output format
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ASCII, Binary
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Other output format
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Pre-processing software needed?
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No
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Describe pre-processing software
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Post-processing software needed?
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Yes
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Describe post-processing software
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The data is written out to binary files. I have a file called dataconv that converts the binary files to a format readable by the visualization software paraview. I also often use MATLAB to do post-processing on the data in the binary files.
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Visualization software needed?
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Yes
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If above answer is yes
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Matlab
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Other visualization software
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Paraview
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Process
Describe processes represented by the model
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Any type of turbidity (or gravity) currents could be modeled with this code. I also use it for modeling internal bores.
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Describe key physical parameters and equations
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Incompressible flow equations: Navier-Stokes with or without Boussinesq approximation. Transport equation to describe the motion of particles (or Salanity or Temperature).
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Describe length scale and resolution constraints
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With the current version of the code (DNS and no turbulence model) we are restricted to low Reynolds numbers. Up to maximum 10,000.
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Describe time scale and resolution constraints
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A parameter called the CFL number controls the time step in relation to the spatial scales. For boussinesq simulations, a CFL number of 0.2 is usually sufficient for code stability. However, for the non-boussinesq simulations, I usually have to lower the CFL number to around 0.05. It's really just a bit of trial and error though.
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Describe any numerical limitations and issues
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Testing
Describe available calibration data sets
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Upload calibration data sets if available:
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Describe available test data sets
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Upload test data sets if available:
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Describe ideal data for testing
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Other
Do you have current or future plans for collaborating with other researchers?
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Is there a manual available?
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No
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Upload manual if available:
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Model website if any
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Model forum / discussion board
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Introduction
History
Papers
Issues
Help
Input Files
Output Files
Download
Source |