The Application Visualization System: A Computational Environment for Scientific Visualization
IEEE Computer Graphics and Applications
An environment for computational steering
An environment for computational steering
VIS '94 Proceedings of the conference on Visualization '94
Selective visualization of vortices in hydrodynamic flows
Proceedings of the conference on Visualization '98
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Many practical problems in open channel hydraulics that were traditionally investigated in hydraulic model experiments, are nowadays being solved by using computational fluid dynamics. However, in order to interpret computational results, there is a clear preference among scientist and engineers for visualization in analogy with experimental techniques. One such technique, particle tracing, enables a dynamic (Lagrangian) interpretation of a statically (Eulerian) computed vector field. However, quite often the emphasis in particle tracing is only on the mean flow properties, while effects due to dispersion and mixing are often not accounted for. Hence turbulent flow characteristics have to be incorporated in a visualization system for practical hydraulic engineering problems. The particle tracing technique presented in this case study has been specifically developed to combine both mean and fluctuating velocity vectors, thus simulating stochastic perturbations around mean flow conditions. A number of cases are presented in this paper that demonstrate the practical applicability of advanced visualization techniques in realistic engineering studies.