A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Fluid flow simulations meet high-speed video : Computer vision comparison of droplet dynamics (2018)
Kulju, S., Riegger, L., Koltay, P., Mattila, K., & Hyväluoma, J. (2018). Fluid flow simulations meet high-speed video : Computer vision comparison of droplet dynamics. Journal of Colloid and Interface Science, 522, 48-56. https://doi.org/10.1016/j.jcis.2018.03.053
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: Kulju, S.; Riegger, L.; Koltay, P.; Mattila, Keijo; Hyväluoma, J.
Lehti tai sarja: Journal of Colloid and Interface Science
ISSN: 0021-9797
eISSN: 1095-7103
Julkaisuvuosi: 2018
Volyymi: 522
Lehden numero: 0
Artikkelin sivunumerot: 48-56
Kustantaja: Elsevier; Academic Press
Julkaisumaa: Yhdysvallat (USA)
Julkaisun kieli: englanti
DOI: https://doi.org/10.1016/j.jcis.2018.03.053
Julkaisun avoin saatavuus: Ei avoin
Julkaisukanavan avoin saatavuus:
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/57427
Tiivistelmä
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.
YSO-asiasanat: pisarat; hydrodynamiikka; simulointi; kokeet (tutkimustoiminta); videokuvaus; konenäkö
Vapaat asiasanat: Lattice Boltzmann; droplet; high-speed video; experimental; hydrophobic
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- SimPhoNy Simulation framework for multi-
- Timonen, Jussi
- Euroopan komissio
OKM-raportointi: Kyllä
Raportointivuosi: 2018
JUFO-taso: 1
