scholarly journals GPU-accelerated direct volume rendering of finite element data sets

Author(s):  
Bingchen Liu ◽  
Alexander Bock ◽  
Timo Ropinski ◽  
Martyn Nash ◽  
Poul Nielsen ◽  
...  
Author(s):  
C F McCulloch ◽  
P Vanhonacker ◽  
E Dascotte

A method is proposed for updating finite element models of structural dynamics using the results of experimental modal analysis, based on the sensitivities to changes in physical parameters. The method avoids many of the problems of incompatibility and inconsistency between the experimental and analytical modal data sets and enables the user to express confidence in measured data and modelling assumptions, allowing flexible but automated model updating.


1994 ◽  
Vol 21 (3) ◽  
pp. 471-489 ◽  
Author(s):  
Paul Boudreau ◽  
Michel Leclerc ◽  
Guy R. Fortin

The macrophytes (aquatic plants) can have a substantial effect on the hydrodynamics of some watercourses. A mathematical formulation for the resistance effect of macrophytes on the current is inserted in a two-dimensional finite element hydrodynamic model. The method introduced herein allows to take into account the morphology, the density, and the growth curve of the different species of macrophytes present in the river. The Lake Saint-Pierre between Sorel and Trois-Rivières (Québec, Canada) in the St. Lawrence River is used to demonstrate the approach. The mathematical aspect of the model is first briefly presented. The field surveys of macrophytes and some other data sets used with the model are then analyzed. Finally, after the calibration–validation step, which insures the good behavior of the model, some results are presented to show the effect of the macrophytes on the flow structure. Key words: hydrodynamics, aquatic plants, St. Lawrence River, Lake Saint-Pierre, two-dimensional modelling, simulation, finite element method, Manning's coefficient.


Author(s):  
Valentin Kraft ◽  
Florian Link ◽  
Andrea Schenk ◽  
Christian Schumann

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