Model:Spbgc: Difference between revisions
From CSDMS
No edit summary |
No edit summary |
||
Line 41: | Line 41: | ||
* Flow Parameters: Reynolds, Peclet | * Flow Parameters: Reynolds, Peclet | ||
* Particle Parameters: Settling velocities. | * Particle Parameters: Settling velocities. | ||
The complete list of input parameters is set and described in the file input.inp | |||
|Input format=ASCII | |Input format=ASCII | ||
|Describe output parameters=It can output local velocity, vorticity, concentration, stream-function, dissipation, kinetic energy | |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. | ||
|Output format=ASCII | 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 | |||
|Pre-processing software needed?=No | |Pre-processing software needed?=No | ||
|Post-processing software needed?=Yes | |Post-processing software needed?=Yes | ||
|Describe post-processing software=The data is | |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 | |Visualization software needed?=Yes | ||
|If above answer is yes=Matlab | |If above answer is yes=Matlab | ||
Line 54: | Line 57: | ||
{{Process description model | {{Process description model | ||
|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 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 Boussinesq | |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 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. | |||
}} | }} | ||
{{Model testing}} | {{Model testing}} |
Revision as of 21:34, 3 August 2010
Contact
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 |
Spbgc
Metadata
Summary
Technical specs
In/Output
Process
Testing
Other
IntroductionHistoryPapersIssuesHelpInput FilesOutput FilesDownloadSource |