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Fluid flow simulations meet high-speed video: Computer vision comparison of droplet dynamics
- Source :
- Journal of colloid and interface science. 522
- Publication Year :
- 2017
-
Abstract
- Hypothesis While multiphase flows, particularly droplet dynamics, are ordinary in nature as well as in industrial processes, their mathematical and computational modelling continue to pose challenging research tasks - patent approaches for tackling them are yet to be found. The lack of analytical flow field solutions for non-trivial droplet dynamics hinders validation of computer simulations and, hence, their application in research problems. High-speed videos and computer vision algorithms can provide a viable approach to validate simulations directly against experiments. Experiments Droplets of water (or glycerol-water mixtures) impacting on both hydrophobic and superhydrophobic surfaces were imaged with a high-speed camera. The corresponding configurations were simulated using a lattice-Boltzmann multiphase scheme. Video frames from experiments and simulations were compared, by means of computer vision, over entire droplet impact events. Findings The proposed experimental validation procedure provides a detailed, dynamic one-on-one comparison of a droplet impact. The procedure relies on high-speed video recording of the experiments, computer vision, and on a software package for the analyzation routines. The procedure is able to quantitatively validate computer simulations against experiments and it is widely applicable to multiphase flow systems in general.
- Subjects :
- Scheme (programming language)
experimental
Computer science
Lattice Boltzmann methods
02 engineering and technology
01 natural sciences
computer vision
010305 fluids & plasmas
Physics::Fluid Dynamics
Biomaterials
Colloid and Surface Chemistry
0103 physical sciences
Fluid dynamics
Computer vision algorithms
simulointi
konenäkö
Computer vision
hydrophobic
computer.programming_language
ta113
videokuvaus
ta114
business.industry
Multiphase flow
Experimental validation
simulation
021001 nanoscience & nanotechnology
Lattice Boltzmann
pisarat
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
High speed video
Dynamics (music)
high-speed video
kokeet (tutkimustoiminta)
hydrodynamiikka
droplet
Artificial intelligence
0210 nano-technology
business
computer
Subjects
Details
- ISSN :
- 10957103
- Volume :
- 522
- Database :
- OpenAIRE
- Journal :
- Journal of colloid and interface science
- Accession number :
- edsair.doi.dedup.....98258d5c2b90f00b7df140d67ba604bc