Wyniki wyszukiwania dla: TRANSITION TO TURBULENCE - MOST Wiedzy

Wyniki wyszukiwania dla: TRANSITION TO TURBULENCE

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Navier number and transition to turbulence
Publikacja
- P. Ziółkowski
- J. Badur
- Journal of Physics : Conference Series - Rok 2014
The motivation behind this article is to explain a role of the Navier number (Na -dimensionless slip-length) in prediction of closures for laminar to turbulent transition undergoing via eddies detachment from the slip layer in nano-cannals. Additionally the role of the Navier number Na in universal modeling of phenomenon of enhanced mass flow rate reported in micro- and nano-channels has been explained. The Na number should be...

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Local Nusselt number evaluation in the case of jet impingement
Publikacja
- T. Kura
- E. Fornalik-Wajs
- J. Wajs
- S. Kenjeres
- Rok 2018
Jet impingement still is one of demanding cases regarding computational fluid dynamics, due to its highly turbulent behaviour, with occurrence of turbulent-laminar transition. Even recently developed methods exhibit some drawbacks – RANS based simulations lack accuracy, LES and DNS based ones require too much computational time. Hybrid methods also exist, but their development and validation is in progress. Nevertheless, CFD application...

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