Ak3gseis at 13:27, 10 October 2022

2022-10-10T13:27:52Z

← Older revision		Revision as of 13:27, 10 October 2022
Line 42:		Line 42:
	\|postprocessor=		\|postprocessor=
	[[FD2MET]], [[TOUTR]], [[TR2FIDI]] , [[TR2REFRESH]], [[TR2RND]], [[TR2VOR]], [[TRGITTER05]]		[[FD2MET]], [[TOUTR]], [[TR2FIDI]] , [[TR2REFRESH]], [[TR2RND]], [[TR2VOR]], [[TRGITTER05]]
	\|language=~~Fortran77~~		\|language=Fortran90
	\|add_software= -		\|add_software= -
	\|contact_original=G. Lang		\|contact_original=G. Lang

Ak3gseis at 13:27, 10 October 2022

2022-10-10T13:27:32Z

← Older revision		Revision as of 13:27, 10 October 2022
Line 44:		Line 44:
	\|language=Fortran77		\|language=Fortran77
	\|add_software= -		\|add_software= -
	\|contact_original=~~[mailto:guenther.lang@baw.de~~ G. Lang]		\|contact_original=G. Lang
	\|contact_maintenance=[mailto:~~guenther~~.~~lang~~@baw.de ~~G. Lang~~]		\|contact_maintenance=[mailto:pre.proghome@baw.de working group PRE]
	\|documentation=$PROGHOME/examples/fd2geom/		\|documentation=$PROGHOME/examples/fd2geom/
	}}		}}

imported>BAWiki 1: Created page with '{{ProgramDescription |name_de=FD2TRIM |name=FD2TRIM |version=Mai 1998 |version_descr=October 1999 |catchwords= preprocessor
finite difference method
conversion of a…'

2010-05-14T11:33:42Z

Created page with '{{ProgramDescription |name_de=FD2TRIM |name=FD2TRIM |version=Mai 1998 |version_descr=October 1999 |catchwords= preprocessor finite difference method conversion of a…'

New page

{{ProgramDescription
|name_de=FD2TRIM
|name=FD2TRIM
|version=Mai 1998
|version_descr=October 1999
|catchwords=
preprocessor 
finite difference method 
conversion of a finite difference grid 
numerical modelling system FIDIRB 
numerical modelling system TRIM-2D 
|shortdescription=
The program FD2TRIM is a preprocessor for the numerical model TRIM-2D. This program serves to convert the bathymetry given in the FIDIRB-format into a equivalent one defined on an other finite difference grid given in the TRIM-format.

Man made structures (e.g. dams, groynes, etc.) which are given as polygonal lines can be (more or less) equivalently mapped onto the U- and V-nodes of a computational finite difference grid for TRIM-2D.

It is also possible to use a different grid spacing for the output grid compared with the grid spacing of the input grid.
|inputfiles=
# general input data (filetype [[FD2TRIM.DAT|fd2trim.dat]])
# FIDIRB-bathymetry (filetype [[TOPO.BIN|topo.bin]])
# (optional) protection polygons (filetype [[NODES.SAVE|nodes.save]])
#* '''Notice''': protection polygons should represent mostly linear or slightly curved structures. Loops or similar silly things are to be avoided.
# (optional) file with protected U-nodes (MJB-special) (filetype fidirb.u.save)
# (optional) file with protected V-nodes (MJB-special) (filetype fidirb.v.save)
|outputfiles=
# equivalent TRIM-2D grid (filetype [[TR2.TOPO.BIN|tr2.topo.bin]])
# (optional) modified structures (filetype [[INSEL.DAT|insel.dat]])
#* '''Notice''': this file contains the protected structure polygons given in the input file of type nodes.save mapped onto the edges of the grid cells (this file can be used for control purposes, e.g. by the program HVIEW2D)
# (optional) modified protection polygons (filetype [[NODES.SAVE|nodes.save]])
#* '''Notice''': this file contains the protected structure polygon nodes given in the input file of type nodes.save (this file can be eventually used later with the program [[TR2GEOM]])
# informative printer file (filetype fd2trim.sdr)
# (optional) trace of program execution (filetype fd2trim.tr
|methodology=
For every computational U- and V-point of a TRIM-2D grid the modell bathymetry is generated from the values of the FIDIRB grid, where depths are prescribed at the ZETA-points (at the center of each grid cell). The depths at the U- and V-points are calculated from the depths of two ZETA-points in such a way, that the U- and V-points are central with respect to the ZETA-points used. Two methods are implemented:

# Depths at U- and V-points are mean values of the corresponding ZETA-points. Therefore the depths are approximated in the best possible way and the speed of the tidal wave can be calculated correctly. On the other hand side the volume of the system under investigation may be overestimated systematically.
# Depths at U- and V-points are minimum values of the corresponding ZETA-points. This guarantees the best approximation of the volume, but depths at U- and V-points are underestimated systematically. Therefore computed wave speed may be also underestimated.

The depths given along the protection polygons are mapped as a continuous zig-zag-line onto the U- and V-points of the grid.
|preprocessor=
[[FD2ADDTOPO]], [[FD2DEL]], [[FD2HYPSO]], [[FDGITTER05]] , [[POLWIND]], [[TR2FIDI]]
|postprocessor=
[[FD2MET]], [[TOUTR]], [[TR2FIDI]] , [[TR2REFRESH]], [[TR2RND]], [[TR2VOR]], [[TRGITTER05]]
|language=Fortran77
|add_software= -
|contact_original=[mailto:guenther.lang@baw.de G. Lang]
|contact_maintenance=[mailto:guenther.lang@baw.de G. Lang]
|documentation=$PROGHOME/examples/fd2geom/
}}

FD2TRIM - Revision history

Ak3gseis at 13:27, 10 October 2022

Ak3gseis at 13:27, 10 October 2022

imported>BAWiki 1: Created page with '{{ProgramDescription |name_de=FD2TRIM |name=FD2TRIM |version=Mai 1998 |version_descr=October 1999 |catchwords= preprocessor finite difference method conversion of a…'

imported>BAWiki 1: Created page with '{{ProgramDescription |name_de=FD2TRIM |name=FD2TRIM |version=Mai 1998 |version_descr=October 1999 |catchwords= preprocessor
finite difference method
conversion of a…'