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Difference between pages "Mathematical Model TRIM-2D" and "Vertical Velocity Profile"

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[[Category: Mathematical Models]]
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[[de:Vertical Velocity Profile]]
[[de: Mathematisches Verfahren TRIM-2D]]
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Author: [mailto:peter.schade@baw.de P. Schade]
==Short Description==
 
The mathematical model TRIM-2D is based on the finite difference method. TRIM-2D was designed to solve several depth-integrated transient nonlinear partial differential equations (pde's). The model is actually used to study one ore more of the following physical processes:
 
  
# transport of water (conservation of the water mass)
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[[Information about the Vertical Velocity Profile|Information about the Vertical Velocity Profile Applet]] (only in english)
# transport of linear momentum (conservation of linear momentum)
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# transport of salinity (conservation of the dissolved salt mass)
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<java_applet CODE=de.baw.hamburg.velocityprofile.VApplet.class height="420" width="740"  archive="http://www.baw.de/downloads/wasserbau/mathematische_verfahren/java/VProfileGraph.jar" />
# transport of suspended sediments with consideration of resuspension and deposition at the bottom (conservation of the suspended sediment mass)
 
# bed load transport (a transport capacity approach is used)
 
# evolution of the bottom (morphodynamics) due to suspended load as well as bed load transport
 
  
TRIM-2D was jointly developed by Prof. V. Casulli (Trento University, Italy) as well as Prof. R. T. Cheng (US Geological Survey, Menlo Park, California). In the framework of a scientific cooperation TRIM-2D has been successfully installed in the year 1994 at BAW-DHs computers. It has been integrated into BAW-DHs numerical modelling toolbox and is now used on a routine basis in the context of different real-world projects concerning estuarine flow and transport processes. Meanwhile the capabilities of the model were extended and new physical processes have been included.
 
Furthermore the program was parallelized using [http://openmp.org/wp/ OpenMP]-directives for SMP ([http://burks.brighton.ac.uk/burks/foldoc/5/114.htm symmetric multiprocessing]) systems in a portable way.
 
==Standard Validation Document==
 
There exists a Standard Validation Document (in German only) for TRIM-2D which provides the potential user with information about the capabilities and limitations of the model. This document may be downloaded either as [http://www.baw.de/downloads/wasserbau//mathematische_verfahren/Modellverfahren/pdf/trim2d1.pdf PDF-Version] ( 2.1M) or as a compressed PostScript-Version  ( 2.9M).
 
==Preprocessors==
 
* [[Generation of Boundary Conditions]]
 
* [[Generation and Modification of Computational Grids]]
 
==Programs for Simulations==
 
* [[TR2VOR]]: generation of a compact version of the bathymetry-file together with some index arrays which are required during the simulation run for optimal performance on vector computers
 
* [[TR2LQ2]]: generation of a profile topography which is necessary to output results from a TRIM-2D simulation run along profiles
 
* [[TRIM-2D]]: simulation run
 
==Postprocessors==
 
* [[Conversion of Computed Results]]: general purpose prostprocessors for the conversion of data.
 
* [[Analysis of Calculated Results]]: tidal characteristic numbers, tide-independent characteristic numbers, tidal harmonic analysis and comparative analysis.
 
* [[EXCEL-Applications|Spread-Sheet Calculations for Computed Results]]: application of the spread-sheet program MS Excel (TM) to display and modify computed results.
 
* [[TR2MODATE]]: modification of date and time in a hydrodynamic results file if this hydrodynamic state should be used as initial state for a different date
 
* [[TR2KACHEL]]: generation of sections (tiles); topography as well as data are cut into pieces out of the result files for the entire computational domain for any desired section (tile)
 
* [[PARTRACE]]: particle tracking within a two-dimensional depth-averaged velocity field
 
* [[GVIEW2D]]: graphical display of time series at selected locations
 
* [[LQ2PRO]]: Visualization of data along profiles
 
* [[HVIEW2D]]: graphical display of 2D synoptic or data analyses results
 
* [[VVIEW2D]]: Two-dimensional graphical representation of CFD-data for vertical sections
 
==Example Applications==
 
* [[Hydrodynamics of the Elbe Estuary]]: A comprehensive study concerning hydrodynamics, salt- and bedload transport in the Elbe Estuary.
 
* Suspended Sediment Transport: Demo-Example (available in German only).
 
* [[Example: Animation of Salinity in the Außenweser Estuary|Animation of tidal variability of salinity in the Außenweser Estuary]].
 
* [[Animation of Water Level Elevation and Flow Velocity in the Inner Jade Estuary]].
 
* [[Tidal characteristic numbers of current velocity for the Weser Estuary]].
 
* [[Tidal characteristic numbers of salinity for the Weser Estuary]].
 
* Modeling the propagation of dunes in a straight channel (available in German only).
 
* [[Animation of vortex streets behind a planned storm surge barrier in the Unterems]].
 
 
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back to [[Mathematical Models for Coastal Areas and Estuaries]]
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back to [[Tools for Hydraulic Engineering]]
 
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[[Overview]]
 
[[Overview]]

Latest revision as of 11:24, 26 July 2010