Model:Spbgc

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Spbgc

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Model type Single Model part of larger framework Note on status model Date note status model Spatial dimensions 2D Spatial extent Model domain Coastal One-line model description 2D Numerical Simulation of Turbidity Currents Extended model description High order two dimensional simulations of turbidity currents using DNS of incompressible Navier-Stokes and transport equations. Keywords: turbidity current, flow structure, Name Zachary Borden Type of contact Model developer Institute / Organization UCSB Postal address 1 Engr II Bldg, Room 2301 Postal address 2 Mechanical Engineering Department, UC Santa Barbara Town / City Santa Barbara Postal code 93106 State California Country United States Email address zborden@gmail.com Phone 805 617-9887 Fax 805 617-9887 Supported platforms Unix, Linux Other platform Programming language C Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2000 Does model development still take place? Yes If above answer is no, provide end year model development Code development status When did you indicate the 'code development status'? Model availability As code Source code availability (Or provide future intension) Source web address Source csdms web address Program license type GPL v2 Program license type other Memory requirements Typical ratio: 2,000,000 nodes requires 1 Gbyte Typical run time Anywhere from minutes to days depending on the resolution Describe input parameters 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 Input format ASCII Other input format Describe output parameters 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. Output format ASCII, Binary Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? Yes Describe post-processing software 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. Visualization software needed? Yes If above answer is yes Matlab Other visualization software Paraview Describe processes represented by the model Any type of turbidity (or gravity) currents could be modeled with this code. I also use it for modeling internal bores. Describe key physical parameters and equations Incompressible flow equations: Navier-Stokes with or without Boussinesq approximation. Transport equation to describe the motion of particles (or Salanity or Temperature). Describe length scale and resolution constraints With the current version of the code (DNS and no turbulence model) we are restricted to low Reynolds numbers. Up to maximum 10,000. Describe time scale and resolution constraints 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. Describe any numerical limitations and issues Describe available calibration data sets Upload calibration data sets if available: Describe available test data sets Upload test data sets if available: Describe ideal data for testing Do you have current or future plans for collaborating with other researchers? Is there a manual available? No Upload manual if available: Model website if any Model forum / discussion board Comments This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant No but possible WMT component No but possible PyMT component Is this a data component Can be coupled with:

Model info Authors Zachary Borden Source code Model citations Nr. of publications: -- Total citations: 0 h-index: --"--" is not a number. m-quotient: 0 QR-code Link to this page Other models by author Spbgc

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