Voronoï imaging methods for the measurement of granular flows

Experiments in Fluids

Volumn 32, Issue 1, 2002, Pages 121-135

  Capart, H ^a   Young, D L ^b   Zech, Y ^a  

^a UNIVERSITÉ CATHOLIQUE DE LOUVAIN   (Belgium)

^b NATIONAL TAIWAN UNIVERSITY   (Taiwan)

Author keywords

[No Author keywords available]

Indexed keywords

ALGORITHMS; AUTOMATION; FLOW PATTERNS; FLUIDIZATION; GRANULAR MATERIALS; IMAGE PROCESSING; SHEAR FLOW; THREE DIMENSIONAL; VELOCITY MEASUREMENT;

DEBRIS FLOW; GRAIN MOTIONS; GRAIN TRAJECTORIES; GRANULAR FLOWS; PATTERN BASED PARTICLE TRACKING ALGORITHM; THREE DIMENSIONAL GRANULAR CONCENTRATION; UNSTEADY DEBRIS SURGES; VORONOI IMAGING METHODS;

FLOW OF SOLIDS;

EID: 0036238228     PISSN: 07234864     EISSN: None     Source Type: Journal    
DOI: 10.1007/s003480200013     Document Type: Article

References (66)

1. Particle-imaging techniques for experimental fluid mechanics
2. Dot pattern processing using Voronoï neighborhoods
3. Voronoï diagrams of moving points
4. Experimental analysis of the general features of uniform debris flow over a loose bed
5. Experimental methods in multiphase flows
6. A new theory of the instability of a uniform fluidized bed
7. Particle size and velocity discrimination in a sediment-laden turbulent flow using phase Doppler anemometry
8. A new method for accurate estimation of velocity field statistics
9. A numerical method for solving differential equations on highly irregular evolving grids
10. Rapid granular flows
11. Dam-break induced geomorphic flows and the transition from solid- to fluid-like behaviour across evolving interfaces
12. Digital imaging characterization of the kinematics of water-sediment interaction
13. Formation of a jump by the dam-break wave over a granular bed
14. Granular temperature behaviour of loose-bed debris flows
15. Dam-break induced debris flow
16. Noninvasive tomographic and velocimetric monitoring of multiphase flows
17. The formation and failure of natural dams
18. Refractive index matching and marking methods for highly concentrated solid-liquid flows
19. Nonintrusive particle tracking system for particulate flows and vibrated granular beds
20. Granular flow: Physical experiments and their implications for microstructural theories
21. Couette flows of a granular monolayer - an experimental study
22. Fluid particle model
23. A sweepline algorithm for Voronoi diagrams
24. Large-scale particle image velocimetry for flow analysis in hydraulic engineering applications
25. Approximate geometric pattern matching under rigid motions
26. Moto uniforme a superficie libra di misture granulari solido-liquido ad alta concentrazione
27. Measurement of particle movement in granular soils using image analysis
28. Measurements of velocity fluctuations of granular materials in a shear cell
29. Limitation and improvement of PIV. Part I: Limitation of conventional techniques due to deformation of particle image patterns
30. Collisional sheet-flow of sediment driven by a turbulent fluid
31. Measurement of suspended solid concentration by using image processing technique
32. An algorithm for the simulation of particulate suspensions with inertia effects
33. Edge effects in the use of area polygons to study competition
34. Investigation of saltating particle motions
35. The flow field and impact force on a debris dam
36. Unsteady surface-velocity field measurement using particle tracking velocimetry
37. Microgravity segregation in binary mixtures of inelastic spheres driven by velocity fluctuation gradients
38. Particle tracking velocimetry in three-dimensional flows. Part II: Particle tracking
39. Methods for the study of cellular sociology: Voronoï diagrams and parametrization of the spatial relationship
40. Noninvasive measurements of granular flows by magnetic-resonance-imaging
41. Local measurements of velocity fluctuations and diffusion coefficients for a granular material flow
42. Sedimentation and fluidization: Part I
43. Research on the algorithm of binary image cross-correlation for unsteady flow field measurement
44. Shear stresses developed during rapid shear of concentrated suspensions of large spherical particles between concentric cylinders
45. Finding trajectories of feature points in a monocular image sequence
46. A brief description of natural neighbour interpolation
47. A new cross-correlation algorithm for PIV based on Delaunay tesselation
48. A new tracking algorithm of PIV and removal of spurious vectors using Delaunay tesselation
49. Estimation of the surface velocity of debris flow with computer-based spatial filtering
50. Three-dimensional particle tracking velocimetry with laser-light sheet scannings
51. Study of the phenomena affecting the accuracy of a video-based particle tracking velocimetry technique
52. Comparison of spatial point pattern and process characterization methods
53. Self-diffusion of grains in a two-dimensional vibrofluidized bed
54. Digital particle image velocimetry
55. Collisional particle pressure measurements in solid-liquid flows