Shear dispersion and turbulence decorrelation by differential rotation
作者： O. E. Garcia , N. H. Bian
DOI: 10.1063/1.1828082
关键词:
摘要: The shear enhanced dispersion of a passive scalar field subject to differential rotation is investigated analytically and interpretations are given in terms turbulence decorrelation. Using the method advected coordinates, caused by steady oscillatory flows with uniform derived well-known decorrelation theory recovered. additional role kinetic energy transfer due advection vorticity also pointed out. Finally, periodic variations space as well time given. It found that radially alternating may significantly reduce provided root mean square flow larger than oscillation frequency. In opposite limit fast oscillations there no
scitation.org
core.ac.uk
osti.gov
aip.org
sci-hub.se 参考文章(13)
P. W. Terry, Does flow shear suppress turbulence in nonionized flows? Physics of Plasmas. ,vol. 7, pp. 1653- 1661 ,(2000) , 10.1063/1.873985
Zhihong Lin, Taik Soo Hahm, WW Lee, William M Tang, Roscoe B White, Turbulent Transport Reduction by Zonal Flows: Massively Parallel Simulations Science. ,vol. 281, pp. 1835- 1837 ,(1998) , 10.1126/SCIENCE.281.5384.1835
K. H. Burrell, Effects of E×B velocity shear and magnetic shear on turbulence and transport in magnetic confinement devices Physics of Plasmas. ,vol. 4, pp. 1499- 1518 ,(1997) , 10.1063/1.872367
Andrew J. Majda, Peter R. Kramer, SIMPLIFIED MODELS FOR TURBULENT DIFFUSION : THEORY, NUMERICAL MODELLING, AND PHYSICAL PHENOMENA Physics Reports. ,vol. 314, pp. 237- 574 ,(1999) , 10.1016/S0370-1573(98)00083-0
O. E. Garcia, V. Naulin, A. H. Nielsen, J. Juul Rasmussen, Computations of Intermittent Transport in Scrape-Off Layer Plasmas Physical Review Letters. ,vol. 92, pp. 165003- ,(2004) , 10.1103/PHYSREVLETT.92.165003
H. Biglari, P. H. Diamond, P. W. Terry, Influence of sheared poloidal rotation on edge turbulence Physics of Fluids B: Plasma Physics. ,vol. 2, pp. 1- 4 ,(1990) , 10.1063/1.859529
O E Garcia, N H Bian, J-V Paulsen, S Benkadda, K Rypdal, Confinement and bursty transport in a flux-driven convection model with sheared flows Plasma Physics and Controlled Fusion. ,vol. 45, pp. 919- 932 ,(2003) , 10.1088/0741-3335/45/6/306
P. W. Terry, Suppression of turbulence and transport by sheared flow Reviews of Modern Physics. ,vol. 72, pp. 109- 165 ,(2000) , 10.1103/REVMODPHYS.72.109
T. S. Hahm, M. A. Beer, Z. Lin, G. W. Hammett, W. W. Lee, W. M. Tang, Shearing rate of time-dependent E×B flow Physics of Plasmas. ,vol. 6, pp. 922- 926 ,(1999) , 10.1063/1.873331
O. E. Garcia, N. H. Bian, Bursting and large-scale intermittency in turbulent convection with differential rotation. Physical Review E. ,vol. 68, pp. 047301- ,(2003) , 10.1103/PHYSREVE.68.047301