Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen
When drafting a new model of a towed technical system for fisheries (trawl, towed TV gear or similar), and also when measuring an existing and already tested system it is not easy to foresee of practical behaviour, which depends of various parameters. The measuring programme for recording all data needs a lot of time and money, and also has some limitations. Therefore we developed for such systems mathematical-physical models, which allow a complex calculation. Their real value, however, results only from practical verification. During the cruise no. 222 of “Walther Herwig III” in November 2000 comparative investigations for 2concrete systems were carried out. This was done in cooperation with the University in Rostock, where such models are being developed and computerized. One of the systems mesasured was a pelagic herring trawl and the other one the towed TV gear for underwater observations of the Institute for Fishery Technology and Fish Quality. The correspondence between model calculation and measurements was very high for both systems.
Main Authors: | , |
---|---|
Format: | article biblioteca |
Language: | German |
Published: |
2001
|
Subjects: | Fisheries, Engineering, fishery techniques, hydroacoustics, underwater observation, herring trawl, hydrodynamics, |
Online Access: | http://hdl.handle.net/1834/20950 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
dig-aquadocs-1834-20950 |
---|---|
record_format |
koha |
spelling |
dig-aquadocs-1834-209502021-06-25T03:28:40Z Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen Comparison between mathematical-physical modelling and measurements at towed technical systemsfor fishery research Gabriel, Otto Niedzwiedz, Gerd Fisheries Engineering fishery techniques hydroacoustics underwater observation herring trawl hydrodynamics When drafting a new model of a towed technical system for fisheries (trawl, towed TV gear or similar), and also when measuring an existing and already tested system it is not easy to foresee of practical behaviour, which depends of various parameters. The measuring programme for recording all data needs a lot of time and money, and also has some limitations. Therefore we developed for such systems mathematical-physical models, which allow a complex calculation. Their real value, however, results only from practical verification. During the cruise no. 222 of “Walther Herwig III” in November 2000 comparative investigations for 2concrete systems were carried out. This was done in cooperation with the University in Rostock, where such models are being developed and computerized. One of the systems mesasured was a pelagic herring trawl and the other one the towed TV gear for underwater observations of the Institute for Fishery Technology and Fish Quality. The correspondence between model calculation and measurements was very high for both systems. Johann Heinrich von Thünen-Institute, Federal Research Institute for Rural Areas, Forestry and Fisheries began publishing the Informationen aus der Fischereiforschung = Information on Fishery Research in 2010. 2021-06-24T15:50:18Z 2021-06-24T15:50:18Z 2001 article FALSE 1437-5842 http://hdl.handle.net/1834/20950 de http://aquacomm.fcla.edu/3192 http://www.vti.bund.de application/pdf application/pdf 129-138 osf@vti.bund.de http://aquaticcommons.org/id/eprint/3192 1240 2012-05-02 13:29:40 3192 Bundesforschungsanstalt für Fischerei |
institution |
UNESCO |
collection |
DSpace |
country |
Francia |
countrycode |
FR |
component |
Bibliográfico |
access |
En linea |
databasecode |
dig-aquadocs |
tag |
biblioteca |
region |
Europa del Oeste |
libraryname |
Repositorio AQUADOCS |
language |
German |
topic |
Fisheries Engineering fishery techniques hydroacoustics underwater observation herring trawl hydrodynamics Fisheries Engineering fishery techniques hydroacoustics underwater observation herring trawl hydrodynamics |
spellingShingle |
Fisheries Engineering fishery techniques hydroacoustics underwater observation herring trawl hydrodynamics Fisheries Engineering fishery techniques hydroacoustics underwater observation herring trawl hydrodynamics Gabriel, Otto Niedzwiedz, Gerd Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen |
description |
When drafting a new model of a towed technical system for fisheries (trawl, towed TV gear or similar), and also when measuring an existing and already tested system it is not easy to foresee of practical behaviour, which depends of various parameters. The measuring programme for recording all data needs a lot of time and money, and also has some limitations. Therefore we developed for such systems mathematical-physical models, which allow a complex calculation. Their real value, however, results only from practical verification. During the cruise no. 222 of “Walther Herwig III” in November 2000 comparative investigations for 2concrete systems were carried out. This was done in cooperation with the University in Rostock, where such models are being developed and computerized. One of the systems mesasured was a pelagic herring trawl and the other one the towed TV gear for underwater observations of the Institute for Fishery Technology and Fish Quality. The correspondence between model calculation and measurements was very high for both systems. |
format |
article |
topic_facet |
Fisheries Engineering fishery techniques hydroacoustics underwater observation herring trawl hydrodynamics |
author |
Gabriel, Otto Niedzwiedz, Gerd |
author_facet |
Gabriel, Otto Niedzwiedz, Gerd |
author_sort |
Gabriel, Otto |
title |
Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen |
title_short |
Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen |
title_full |
Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen |
title_fullStr |
Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen |
title_full_unstemmed |
Gegenüberstellung von mathematisch-physikalischer Modellierung und Messungen an geschleppten fischereitechnischen Systemen |
title_sort |
gegenüberstellung von mathematisch-physikalischer modellierung und messungen an geschleppten fischereitechnischen systemen |
publishDate |
2001 |
url |
http://hdl.handle.net/1834/20950 |
work_keys_str_mv |
AT gabrielotto gegenuberstellungvonmathematischphysikalischermodellierungundmessungenangeschlepptenfischereitechnischensystemen AT niedzwiedzgerd gegenuberstellungvonmathematischphysikalischermodellierungundmessungenangeschlepptenfischereitechnischensystemen AT gabrielotto comparisonbetweenmathematicalphysicalmodellingandmeasurementsattowedtechnicalsystemsforfisheryresearch AT niedzwiedzgerd comparisonbetweenmathematicalphysicalmodellingandmeasurementsattowedtechnicalsystemsforfisheryresearch |
_version_ |
1756077432333402112 |