A case study in selective visualization of unsteady 3D flow

Proceedings of the conference on Visualization ’02 table of contents
Boston, Massachusetts
SESSION: Session C3: mesh and flow visualization table of contents
Pages: 525 – 528
Year of Publication: 2002
ISBN:0-7803-7498-3
Authors
Dirk Bauer
ETH Zürich, CH-8092 Zürich, Switzerland
Ronald Peikert
ETH Zürich, CH-8092 Zürich, Switzerland
Mie Sato
ETH Zürich, CH-8092 Zürich, Switzerland
Mirjam Sick
VA Tech Hydro Zürich, CH-8023 Zürich, Switzerland

Sponsors
ITCVG : IEEE Computer Society Technical Committee on Visualization and Graphics
SIGGRAPH: ACM Special Interest Group on Computer Graphics and Interactive Techniques
Publisher
IEEE Computer Society Washington, DC, USA
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Downloads (6 Weeks): 1, Downloads (12 Months): 40, Citation Count: 5

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ABSTRACT
In this case study, we explore techniques for the purpose of visualizing isolated flow structures in time-dependent data. Our primary industrial application is the visualization of the vortex rope, a rotating helical structure which builds up in the draft tube of a water turbine. The vortex rope can be characterized by high values of normalized helicity, which is a scalar field derived from the given CFD velocity data. In two related applications, the goal is to visualize the cavitation regions near the runner blades of a Kaplan turbine and a water pump, respectively. Again, the flow structure of interest can be defined by a scalar field, namely by low pressure values. We propose a particle seeding scheme based on quasi-random numbers, which minimizes visual artifacts such as clusters or patterns. By constraining the visualization to a region of interest, occlusion problems are reduced and storage efficiency is gained.

REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

1
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2
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CITED BY 5

Jason S. Sobel , Andrew S. Forsberg , David H. Laidlaw , Robert C. Zeleznik , Daniel F. Keefe , Igor Pivkin , George E. Karniadakis , Peter Richardson , Sharon Swartz, Particle Flurries: Synoptic 3D Pulsatile Flow Visualization, IEEE Computer Graphics and Applications, v.24 n.2, p.76-85, March 2004

Helmut Doleisch , Helwig Hauser , Martin Gasser , Robert Kosara, Interactive Focus+Context Analysis of Large, Time-Dependent Flow Simulation Data, Simulation, v.82 n.12, p.851-865, January 2006

Paul Adams , Douglas Dommermuth, Visualization of Steep Breaking Waves and Thin Spray Sheets Around a Ship, Proceedings of the 14th IEEE Visualization 2003 (VIS’03), p.73, October 22-24, 2003

Khalid Djado , Richard Egli, Particle-based fluid flow visualization on meshes, Proceedings of the 6th International Conference on Computer Graphics, Virtual Reality, Visualisation and Interaction in Africa, February 04-06, 2009, Pretoria, South Africa

H. Jänicke , G. Scheuermann, Knowledge Assisted Visualization: Steady visualization of the dynamics in fluids using e-machines, Computers and Graphics, v.33 n.5, p.597-606, October, 2009

INDEX TERMS
Primary Classification:
I. Computing Methodologies
I.3 COMPUTER GRAPHICS
I.3.8 Applications
Additional Classification:
I. Computing Methodologies
I.4 IMAGE PROCESSING AND COMPUTER VISION
I.4.7 Feature Measurement
Subjects: Feature representation

J. Computer Applications
J.2 PHYSICAL SCIENCES AND ENGINEERING
Subjects: Engineering