Velocity derivatives in the atmospheric surface layer at Reλ = 104

Physics of Fluids

Volumn 13, Issue 1, 2001, Pages 311-314

  Kholmyansky, M ^a   Tsinober, A ^a   Yorish, S ^a  

^a TEL AVIV UNIVERSITY   (Israel)

Author keywords

[No Author keywords available]

Indexed keywords

REYNOLDS NUMBER; RHENIUM; STATISTICAL METHODS; STRAIN RATE; SURFACE STRUCTURE; TENSORS; VELOCITY MEASUREMENT; VORTEX FLOW;

ATMOSPHERIC SURFACE LAYER; VELOCITY GRADIENT TENSORS;

TURBULENT FLOW;

ATMOSPHERIC FLOW; FLOW VELOCITY; SURFACE LAYER;

ATMOSPHERIC DYNAMICS; FLOW VELOCITY; SURFACE LAYER;

EID: 0034745748     PISSN: 10706631     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.1328358     Document Type: Article

References (10)

1. A. Tsinober, E. Kit, and T. Dracos, "Experimental investigation of the field of velocity gradients in turbulent flows," J. Fluid Mech. 242, 169 (1992).
2. A. Tsinober, L. Shtilman, and H. Vaisburd, "A study of vortex stretching and enstrophy generation in numerical and laboratory turbulence," Fluid Dyn. Res. 21, 477 (1997).
3. H. Tennekes and J. L. Lumley, A First Course in Turbulence (MIT Press, Cambridge, 1972), pp. 87-91.
4. It is noteworthy that such "smallness" of these RDT-like terms is observed in a turbulent channel flow at a rather moderate Reynolds number too; see N. D. Sandham and A. Tsinober, "Kinetic energy, enstrophy and strain in near-wall turbulence," in Advances in Turbulence VIII, Proceedings of the 8th European Turbulence Conference (International Center for Numerical Methods in Engineering (CIMNE), Barcelena, 2000).
5. K. Ohkitani, "Kinematics of vorticity: Vorticity-strain conjugation in incompressible fluid flows," Phys. Rev. E 50, 5107 (1994).
6. This was observed in DNS of NSE at low Reynolds numbers; see Ref. 7.
7. A. Tsinober, "Vortex stretching versus production of strain/dissipation," in Turbulence Structure and Vortex Dynamics, edited by J. C. R. Hunt and J. C. Vassilicos (Cambridge University Press, Cambridge, in press), available as a preprint NI99010-TRB, 11 June 1999, Isaac Newton Institute for Mathematical Sciences, Cambridge, UK.
8. A. Tsinober, "Is concentrated vorticity that important?" Eur. J. Mech., B/Fluids 17, 421 (1998); "Turbulence - beyond phenomenology," in Chaos, Kinetics and Nonlinear Dynamics in Fluids and Plasmas, Lecture Notes in Physics, edited by S. Benkadda and G. M. Zaslavsky (Springer-Verlag, Berlin, 1998), Vol. 11, pp. 85-143.
9. A. Tsinober, "Is concentrated vorticity that important?" Eur. J. Mech., B/Fluids 17, 421 (1998); "Turbulence - beyond phenomenology," in Chaos, Kinetics and Nonlinear Dynamics in Fluids and Plasmas, Lecture Notes in Physics, edited by S. Benkadda and G. M. Zaslavsky (Springer-Verlag, Berlin, 1998), Vol. 11, pp. 85-143.
10. A. Tsinober, M. Ortenberg, and L. Shtilman, "On depression of nonlinearity in turbulence," Phys. Fluids 11, 2291 (1999).