Model:FineSed3D

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FineSed3D

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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 Incorporated models or components: Spatial dimensions 3D Spatial extent Grain-Scale Model domain Marine, Terrestrial One-line model description A turbulence-resolving numerical model for fine sediment transport in bottom boundary layer Extended model description A turbulence-resolving numerical model for fine sediment transport in the bottom boundary layer is developed. A simplified Eulerian two-phase flow formulation for the fine sediment transport is adopted. By applying the equilibrium Eulerian approximation, the particle phase velocity is expressed as a vectorial sum of fluid velocity, sediment settling velocity and Stokes number dependent inertia terms. The Boussinesq approximation is applied to simplify the governing equation for the fluid phase. This model utilizes a high accuracy hybrid compact finite difference scheme in the wall-normal direction, and uses the pseudo-spectral scheme in the streamwise and spanwise directions. The model allows a prescribed sediment availability as well as an erosional/depositional bottom boundary condition for sediment concentration. Meanwhile, the model also has the capability to include the particle inertia effect and hindered settling effect for the particle velocity. Keywords: Fine Sediment, Turbulence-resolving, Bottom boundary layer, Name Zhen Cheng Type of contact Model developer Institute / Organization Center for Applied Coastal Research, University of Delaware Postal address 1 259 academy street Postal address 2 Town / City Newark Postal code 19716 State Delaware Country United States Email address zcheng@udel.edu Phone 3024196006 Fax Supported platforms Unix, Linux, Mac OS, Windows Other platform Programming language Fortran77 Other program language Code optimized Multiple Processors Multiple processors implemented Shared memory Nr of distributed processors Nr of shared processors 48 Start year development 2012 Does model development still take place? No If above answer is no, provide end year model development 2014 Code development status When did you indicate the 'code development status'? Model availability As code, As teaching tool Source code availability (Or provide future intension) Through CSDMS repository Source web address Source csdms web address https://github.com/csdms-contrib/finesed3d Program license type CDDL Program license type other Memory requirements Typical run time one month Describe input parameters start time step, number of time steps to run, settling velocity, Reynolds number, see more details in the user manual. Input format ASCII Other input format Describe output parameters vel.*: fluid velocity, binary format, the I/O format can be found in io.F in the folder \Src. conc.*: sediment concentration, binary format, see io.F in the folder \Src for detailed I/O information. press.*: fluid dynamic pressure, binary format, see io.F in the folder \Src for detailed I/O information. vel\_p.*: difference of sediment velocity from fluid velocity, output if inertia effect or hindered settling effect is considered, binary format, see io.F in the folder \Src for detailed I/O information. DDt.*: material derivative of fluid velocity, output if inertia effect is included, binary format, see io.F in the folder \Src for detailed I/O information. ushear.dat: time series of plane averaged bottom shear velocity, it is output every time step, ASCII format. logfile: log of screen output to monitor the quantities such as CFL number, domain averaged concentration, bottom concentration, etc., ASCII format. Output format Binary Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? No If above answer is yes Other visualization software Describe processes represented by the model fine sediment transport in the bottom boundary layer Describe key physical parameters and equations Reynolds number, settling velocity, Froude number (or bulk Richardson number), critical shear stress of erosion, Stokes number Describe length scale and resolution constraints Domain should be large enough to resolve the bottom boundary layer, meanwhile, the grid resolution should be fine enough to resolve all the essential turbulence scales. Describe time scale and resolution constraints time step should be small enough to ensure the CFL criterion. Describe any numerical limitations and issues limited to applications to wall-bounded channel domains. Describe available calibration data sets Upload calibration data sets if available: Describe available test data sets matlab data for ensemble-averaged profiles of sediment concentration (conc), fluid velocity (vel) and turbulent kinetic energy (k) at the flow peak of Case 2; Upload test data sets if available: Media:Case2Data.mat Describe ideal data for testing Do you have current or future plans for collaborating with other researchers? Is there a manual available? Yes Upload manual if available: Media:FineSed3D_User_Manual.pdf 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 Zhen Cheng Source code View in CSDMS GitHub repository Model citations Nr. of publications: 1 Total citations: 1 h-index: 1 m-quotient: 0.09 QR-code Link to this page Other models by author FineSed3D TwoPhaseEulerSedFoam

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Nr. of publications:	1
Total citations:	1
h-index:	1
m-quotient:	0.09

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