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Three-dimensional flow topology evolution in turbulent Rayleigh-Bénard convection

Author
Dabbagh, F.; Trias, F. X.; Gorobets, A.; Oliva, A.
Type of activity
Presentation of work at congresses
Name of edition
International Conference on Rayleigh-Bénard Turbulence 2018
Date of publication
2018
Presentation's date
2018-05-15
Book of congress proceedings
Abstact booklet for the International Conference on Rayleigh-Bénard Turbulence held at The University of Twente, Enschede, the Netherlands
First page
62
Last page
62
Project funding
Advanced numerical algorithms for the improvement of the efficiency applied to wind-energy and solar thermal: tackling with new computational arquitectures
Ajut per a contractació RYC-2012-11996
URL
https://pof.tnw.utwente.nl/rbc2018/wp-content/uploads/2018/05/RBC2018_abstract_booklet.pdf Open in new window
Abstract
Small-scale dynamics is the spirit of turbulence physics. It delivers complex mechanisms when turbulence is purely sustained by buoyancy. This takes place in Rayleigh-Bénard convection (RBC). Most of the existing RBC dynamics is ruled by hard turbulent regime and a deep understanding of small scale dynamics with its relevant nonlinearities, is still unsatis¿ed. To do so, the evolution of QG =-1/2tr(G2) and RG =-1/3tr(G3), invariants of the velocity gradient tensor, G = Gradu u u, in their phas...
Group of research
CTTC - Heat and Mass Transfer Technological Center

Participants