Vector VisualizationVector Visualization

Acknowledgements: Torsten MAcknowledgements: Torsten Möller öller (SFU)(SFU)

Verma et al. Cabral & Leedom

Compassis.comTecplot.com

2

Flow VisualizationFlow Visualization

► Traditionally – Experimental Flow VisTraditionally – Experimental Flow Vis► Now – Computational SimulationNow – Computational Simulation

► Typical Applications:Typical Applications: Study physics of fluid flowStudy physics of fluid flow Design aerodynamic objectsDesign aerodynamic objects Weather predictionWeather prediction

3

Traditional Flow ExperimentsTraditional Flow Experiments

4

GlyphsGlyphs

Niklas Röber http://ww2010.atmos.uiuc.edu/(Gl)/guides/mtr/cyc/upa/wndvct.rxml

5

QuickTime™ and aYUV420 codec decompressor

are needed to see this picture.

Example: Fire simulationExample: Fire simulation

P. Smith et al.

6

Example 2Example 2

QuickTime™ and aCinepak decompressor

are needed to see this picture.

7

Particle TracingParticle Tracing

Contours

http://www.kw-tech.co.kr/product/images/ensight/

8

9

David A. Lane

10

ComparisonComparison

Contours

Streamlines

Glyphs (arrows)

Jean M. Favre

11

Variation - Variation - Stream-tubeStream-tube

► Generate a stream-line and connect circular Generate a stream-line and connect circular crossflow sections along the stream-linecrossflow sections along the stream-line

12

Variation - Variation - Flow VolumesFlow Volumes

► Instead of tracing a line - trace a small Instead of tracing a line - trace a small polyhedrapolyhedra

13

LIC (Line Integral Convolution)LIC (Line Integral Convolution)

► Integrate noise Integrate noise texture along a texture along a streamlinestreamline

H.W. Shen

QuickTime™ and aYUV420 codec decompressor

are needed to see this picture.

QuickTime™ and aYUV420 codec decompressor

are needed to see this picture.

QuickTime™ and aYUV420 codec decompressor

are needed to see this picture.

14

Challenges – Non-spatial Challenges – Non-spatial DataData

Doleisch et al.

Vertical velocity vs. velocity

X-coordinate vs. viscosity