Analysis of data on the relation between eddies and streaky structures in turbulent flows using the placebo method
- 44 Downloads
An artificially synthesized velocity field with known properties is used as a test data set in analyzing and interpreting the turbulent flow velocity fields. The objective nature of this approach is utilized for studying the relation between streaky and eddy structures. An analysis shows that this relation may be less significant than is customarily supposed.
Keywordsturbulence visualization streaky structures eddy Galilean decomposition
Unable to display preview. Download preview PDF.
- 1.A.V. Boiko, G.R. Grek, A.V. Dovgal’, and V.V. Kozlov, Development of Turbulence in Near-Wall Flows [in Russian], Nauka, Novosibirsk (1999).Google Scholar
- 7.D. R. Osborne, J. C. Vassilicos, and J. D. Haigh, “One particle two-time diffusion in three-dimensional homogeneous isotropic turbulence,” Phys. Fluids, 1y, No. 3, 03510.1–035104.11 (2005).Google Scholar
- 8.G. Kawahara, J. Jiménez, M. Uhlmann, and A. Pinelli, “The instability of streaks in near-wall turbulence,” Annu. Res. Briefs, CTR, 155–170 (1998).Google Scholar
- 14.Z. Hu and N. D. Sandham, “DNS databases for turbulent Couette and Poiseuille flow,” Technical Report 01/04. 2002, AFM Research Group, SES, Univ. Southampton (2001).Google Scholar