2011
Small-scale statistics in direct numerical simulation of turbulent channel flow at high-Reynolds number
13TH EUROPEAN TURBULENCE CONFERENCE (ETC13): WALL-BOUNDED FLOWS AND CONTROL OF TURBULENCE
- ,
- ,
- Volume
- 318
- Number
- SECTION 2
- First page
- 022016
- Last page
- Language
- English
- Publishing type
- Research paper (international conference proceedings)
- DOI
- 10.1088/1742-6596/318/2/022016
- Publisher
- IOP PUBLISHING LTD
Small-scale statistics in turbulent channel flow are studied by high resolution direct numerical simulations with the friction Reynolds number up to Re-tau = 2560. The second order velocity statistics in the inertial subrange of the log-low region are found to be not far from those predicted by Kolmogorov's universal equilibrium theory, although the agreement is not perfect. The shear parameter S* decreases with the distance y(+) from the wall and S* less than or similar to 0.1 in y(+) > 400 for large Re-tau, where S* is the ratio of the Kolmogorov time scale to the mean shear time scale. For larger Re-tau, the y(+)-dependence of S* is closer to a simple theoretical estimate in the log-low region.
- Link information
-
- DOI
- https://doi.org/10.1088/1742-6596/318/2/022016
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000301292300016&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84856352050&origin=inward Open access
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84856352050&origin=inward
- ID information
-
- DOI : 10.1088/1742-6596/318/2/022016
- ISSN : 1742-6588
- eISSN : 1742-6596
- SCOPUS ID : 84856352050
- Web of Science ID : WOS:000301292300016