Sources of error in the graphical analysis of CFD results
Journal of Scientific Computing
An analysis of 3D particle path integration algorithms
Journal of Computational Physics
Interactive numerical flow visualization using stream surfaces
Interactive numerical flow visualization using stream surfaces
Scientific Visualization of Large-Scale Unsteady Fluid Flows
Scientific Visualization, Overviews, Methodologies, and Techniques
Practicle Tracing Algorithms for 3D Curvilinear Grids
Scientific Visualization, Overviews, Methodologies, and Techniques
Optimization of Time-Dependent Particle Tracing Using Tetrahedral Decomposition
VIS '95 Proceedings of the 6th conference on Visualization '95
The virtual windtunnel: an environment for the exploration of three-dimensional unsteady flows
VIS '91 Proceedings of the 2nd conference on Visualization '91
Visualization of time-dependent flow fields
VIS '93 Proceedings of the 4th conference on Visualization '93
Efficient subdivision of finite-element datasets into consistent tetrahedra
VIS '97 Proceedings of the 8th conference on Visualization '97
Shock and vortex visualization using a combined visual/Haptic interface
Proceedings of the conference on Visualization '00
Real-time out-of-core visualization of particle traces
PVG '01 Proceedings of the IEEE 2001 symposium on parallel and large-data visualization and graphics
Visualization of particle traces in virtual environments
VRST '01 Proceedings of the ACM symposium on Virtual reality software and technology
Out-of-Core Streamline Visualization on Large Unstructured Meshes
IEEE Transactions on Visualization and Computer Graphics
Synergistic Visual/Haptic Rendering Modes for Scientific Visualization
IEEE Computer Graphics and Applications
Compatible Triangulations of Spatial Decompositions
VIS '04 Proceedings of the conference on Visualization '04
A Particle System for Interactive Visualization of 3D Flows
IEEE Transactions on Visualization and Computer Graphics
Correction of Location and Orientation Errors in Electromagnetic Motion Tracking
Presence: Teleoperators and Virtual Environments
Evaluation of rotation correction techniques for electromagnetic position tracking systems
EG VE'00 Proceedings of the 6th Eurographics conference on Virtual Environments
Interactive particle tracing in time-varying tetrahedral grids
EG PGV'11 Proceedings of the 11th Eurographics conference on Parallel Graphics and Visualization
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Streak lines and particle traces are effective visualization techniques for studying unsteady fluid flows. For real-time applications, accuracy is often sacrificed to achieve interactive frame rates. Physical space particle tracing algorithms produce the most accurate results although they are usually too expensive for interactive applications. An efficient physical space algorithm is presented in this paper which was developed for interactive investigation and visualization of large, unsteady, aeronautical simulations. Performance has been increased by applying tetrahedral decomposition to speed up point location and velocity interpolation in curvilinear grids. Preliminary results from batch computations [1] showed that this approach was up to six times faster than the most common algorithm which uses the Newton-Raphson method and trilinear interpolation. Results presented here show that the tetrahedral approach also permits interactive computation and visualization of unsteady particle traces. Statistics are given for frame rates and computation times on single and multiprocessors. The benefits of interactive feature detection in unsteady flows are also demonstrated.