TR2DIDA

Basic Information

Name of Program

TR2DIDA

Version-Date

V4.x - January 2001

Description-Date

September 2022

Catchwords

postprocessor
finite difference method
data conversion
universal direct access data format
numerical model TRIM-2D

Short Description of Functionality

The program TR2DIDA is a postprocessor for the numerical model TRIM-2D. This program serves to convert the results stored in the TRIM-2D result files (water level elevation, current velocity, salinity, suspended sediment concentration, as well as deposited suspended sediment mass, bed load transport, deposited bed load material mass, time-varying bathymetry and bottom evolution (will be calculated from other results)) into BAW-DHs standard data format (universal direct access data format). Optional results (e.g. wind shear stress and bottom shear stress) could be converted as well. The application of this program is a necessity for the usage of various model-independent postprocessors (for graphics and data analysis).

Input-Files

1. general input data (filetype tr2dida.dat)
2. bathymetry and index-arrays (filetype tr2.topo.bin.ind)
3. equivalent grid (filetype gitter05.dat/bin) or systemfile (filetype sysdat.bin, will no longer be supported in the future)

   Notice: This file must be generated by TR2GEOM before using this program.

4. model results (filetype tr2.result)
5. (optional) protection polygons (filetype nodes.save)

Output-Files

1. converted results (files of type dirz.bin.r, dirz.bin.i and dirz.bin)
2. informative printer file (filetype tr2dida.sdr)
3. (optional) trace of program execution (filetype tr2dida.trc)

Methodology

The results of a TRIM-2D simulation are interpolated from the staggered nodes of the computational grid (U-, V- and H-nodes) onto the nodes of the equivalent grid (triangles). The error due to interpolation is mainly influenced by the grid-size as well as the local gradients of the physical quantities. The evolution of the bottom can be optionally calculated as the difference between the original bathymetry and the actual bathymetry.

Program(s) to run before this Program

TRIM-2D, TR2GEOM, TR2KACHEL TRIMKACH

Program(s) to run after this Program

ABDF, ADCP2PROFILE, DIDAMERGE, DIDARENAME, DIDASPLIT, ENERF, GVIEW2D, HVIEW2D, IO_VOLUME, PARTRACE, PGCALC, UNK, VTDK, XTRLQ2, ZEITR

Additional Information

Language

Fortran90

Additional software

-

Original Version

G. Lang

Maintenance

Working group POS

Documentation/Literature

$PROGHOME/examples/tr2dida/

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