Abstract
The inadequacy of the use of point-concepts and dynamicconcepts to define a vortex is discussed. An objective and formal kinematic definition of a vortex that corresponds to the basic notion of a swirling motion around a central set of points is proposed. Some results of the application of algorithms based on the proposed definition to the DNS of a flat plate TBL at Re θ = 670 are presented.
Keywords
- Turbulent Boundary Layer
- Vortex Center
- Vortex Axis
- Flat Plate Boundary Layer
- Turbulent Boundary Layer Flow
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
CHONG, M. S., PERRY, A. E. & CANTWELL, B. J. (1990) A general classification of three-dimensional flow fields. Phys. Fluids. A 2, 765.
HUNT, J. C. R., WRAY, A. A. & MOIN, P. (1988) Eddies, stream, and convergence zones in turbulent flows. Center for Turbulence Research Report CTR-S88. A 2, p. 193.
HUSSAIN, F. (1986) Coherent structures and turbulence. J. Fluid Mech. 173, 303.
JEONG, J. & HUSSAIN, F. (1995) On the identification of a vortex. J. Fluid Mech. 285, 69.
MELANDER, M. V. & HUSSAIN, F. (1993) Polarized vorticity dynamics on a vortex column. Phys. Fluids. A 5, 1992.
PORTELA, L. M. (1997) Identification and Characterization of Vortices in the Turbulent Boundary Layer. Ph.D. dissertation, Mech. Eng. Dept., Stanford University.
ROBINSON, S. K. (1991) The Kinematics of Turbulent Boundary Layer Structure. NASA Technical Memorandum 103859.
SPALART, P. R. (1988) Direct simulation of a turbulent boundary layer up to Re θ = 1410. J. Fluid Mech. 187, 61.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1999 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Portela, L.M. (1999). The Vortex Concept and its Identification in Turbulent Boundary Layer Flows. In: Sørensen, J.N., Hopfinger, E.J., Aubry, N. (eds) IUTAM Symposium on Simulation and Identification of Organized Structures in Flows. Fluid Mechanics and Its Applications, vol 52. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4601-2_22
Download citation
DOI: https://doi.org/10.1007/978-94-011-4601-2_22
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-5944-2
Online ISBN: 978-94-011-4601-2
eBook Packages: Springer Book Archive