Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/9774
Title: Box-size dependence and breaking of translational invariance in the velocity statistics computed from three-dimensional turbulent Kolmogorov flows
Authors: Σαρρής, Ιωάννης Ε.
Jeanmart, Herve
Winckelmans, Gregoire
Carati, Daniele
Item type: Journal article
Keywords: velocity field;viscoelastic fluid;Direct numerical simulation;πεδίο ταχύτητας;ιξωδοελαστικό ρευστό;Άμεση αριθμητική προσομοίωση
Subjects: Technology
Engineering
Τεχνολογία
Μηχανική
Issue Date: 5-May-2015
2007
Date of availability: 5-May-2015
Publisher: American Institute of Physics
Abstract: The Kolmogorov flow generated by a stationary one-dimensional forcing varying sinusoidally in space is studied using direct numerical simulations with periodic boundary conditions. The velocity statistics are considered for various computational domains ranging from the minimal cubic box with size equal to the forcing wavelength to significantly larger domains. For the minimal computational domain, the velocity statistics exhibit symmetries that are directly imposed by the forcing properties. However, for larger domains, the translational invariance in the streamwise direction appears to be broken and the turbulence statistics depend on the computational box aspect ratio.
Language: English
Citation: SARRIS, I.E., JEANMART, H., CARATI, D. & WINCKELMANS, G. (2007). Box-size dependence and breaking of translational invariance in the velocity statistics computed from three-dimensional turbulent Kolmogorov flows. Physics of Fluids. [Online] 19 (9). p.095101 - 095101-9. Available from: http://scitation.aip.org/[Accessed 05/09/2007]
Journal: Physics of Fluids
Type of Journal: With a review process (peer review)
Access scheme: Publicly accessible
License: An error occurred on the license name.
URI: http://hdl.handle.net/11400/9774
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