Model:TURBINS: Difference between revisions
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|Source code availability=Through CSDMS repository | |Source code availability=Through CSDMS repository | ||
|Program license type=GPL v2 | |Program license type=GPL v2 | ||
|Memory requirements=Roughly, 1 GB per 270,000 grid cells. | |Memory requirements=Roughly, 1 GB per 270,000 grid cells. | ||
|Typical run time=Day(s) | |Typical run time=Day(s) | ||
}} | }} | ||
{{Input - Output description | {{Input - Output description | ||
|Describe input parameters=A self-explanatory file input.inp should be set before running the code. | |Describe input parameters=A self-explanatory file "input.inp" should be set before running the code. | ||
Flow and particle parameters such as Reynolds number, Peclet number, particle settling velocity(ies) can be set here. | Flow and particle parameters such as Reynolds number, Peclet number, particle settling velocity(ies) can be set here. | ||
Also, number of grid nodes, domain length, output file flags and simulation runtime, etc should be entered. | Also, number of grid nodes, domain length, output file flags and simulation runtime, etc should be entered. | ||
|Input format=ASCII | |Input format=ASCII | ||
|Describe output parameters=Depending on the set | |Describe output parameters=Depending on the flags set in the "input.inp" file, flow properties such as velocity, pressure, particle concentration(s), particle deposit mass, bottom shear stress, kinetic and potential energy, dissipation rate, suspended particle mass, current front location, and etc are recorded at the given timesteps. | ||
|Output format=ASCII, Binary | |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=A simple C++ code is called to convert raw binary data to VTK | |Describe post-processing software=A simple C++ code is called to convert raw binary data to "*.vtr" (see VTK format) that can be read by a software called Paraview. | ||
|Visualization software needed?=Yes | |Visualization software needed?=Yes | ||
|If above answer is yes=Matlab | |If above answer is yes=Matlab | ||
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}} | }} | ||
{{Process description model | {{Process description model | ||
|Describe key physical parameters and equations=Navier-Stokes equation: to describe the ambient fluid's motion | |Describe processes represented by the model=Any density driven current including particle-laden flows produced by the lock-exchange (or continuous inflow) can be simulated. The flow can interact with any arbitrary topography on the bottom. | ||
|Describe key physical parameters and equations=Navier-Stokes equation in Bousinessq approximations: to describe the ambient fluid's motion | |||
Transport equation(s): to describe the particle and/or salinity concentration field evolution. | Transport equation(s): to describe the particle and/or salinity concentration field evolution. | ||
Reynolds number, Peclet number, particle settling velocities | Reynolds number, Peclet number, particle settling velocities. | ||
|Describe length scale and resolution constraints=The current version is a DNS code, i.e. no turbulence model is incorporated. | |Describe length scale and resolution constraints=The current version is a DNS code, i.e. no turbulence model is incorporated yet. | ||
Hence, grid resolution should be carefully treated to resolve all the flow scales. | Hence, grid resolution should be carefully treated to resolve all the flow scales. | ||
In other words, limited by the computational costs, we are restricted to low Reynolds numbers (O( | In other words, limited by the computational costs, we are restricted to low Reynolds numbers (O(1,000)-O(10,000)). | ||
}} | }} | ||
{{Model testing}} | {{Model testing}} |
Revision as of 04:11, 20 July 2011
TURBINS
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