Carregant...
Carregant...

Vés al contingut (premeu Retorn)

Three dimensionality in the wake of the flow around a circular cylinder at Reynolds number 5000

Autor
Aljure, D.E.; Lehmkuhl, O.; Rodriguez, I.; Oliva, A.
Tipus d'activitat
Article en revista
Revista
Computers and fluids
Data de publicació
2017-04-02
Volum
147
Pàgina inicial
102
Pàgina final
118
DOI
https://doi.org/10.1016/j.compfluid.2017.02.004 Obrir en finestra nova
Repositori
http://hdl.handle.net/2117/103891 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0045793017300488 Obrir en finestra nova
Resum
The turbulent flow around a circular cylinder has been investigated at Re=5000Re=5000 using direct numerical simulations. Low frequency behavior, vortex undulation, vortex splitting, vortex dislocations and three dimensional flow within the wake were found to happen at this flow regime. In order to successfully capture the wake three dimensionality, different span-wise lengths were considered. It was found that a length LZ=2pDLZ=2pD was enough to capture this behavior, correctly predicting diffe...
Citació
Aljure, D.E., Lehmkuhl, O., Rodriguez, I., Oliva, A. Three dimensionality in the wake of the flow around a circular cylinder at Reynolds number 5000. "Computers and fluids", 2 Abril 2017, vol. 147, p. 102-118.
Paraules clau
Coherent structures, Direct numerical simulation, Shear layer, Vortex dislocations, Vortex shedding, Wake three-dimensionality
Grup de recerca
CTTC - Centre Tecnològic de la Transferència de Calor
TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group

Participants