A statistical study of gyro-averaging effects in a reduced model of drift-wave transport
Abstract
Here, a statistical study of finite Larmor radius (FLR) effects on transport driven by electrostatic driftwaves is presented. The study is based on a reduced discrete Hamiltonian dynamical system known as the gyro-averaged standard map (GSM). In this system, FLR effects are incorporated through the gyro-averaging of a simplified weak-turbulence model of electrostatic fluctuations. Formally, the GSM is a modified version of the standard map in which the perturbation amplitude, K0, becomes K0J0($$\hat{p}$$), where J0 is the zeroth-order Bessel function and $$\hat{p}$$ s the Larmor radius. Assuming a Maxwellian probability density function (pdf) for $$\hat{p}$$ , we compute analytically and numerically the pdf and the cumulative distribution function of the effective drift-wave perturba- tion amplitude K0J0($$\hat{p}$$). Using these results, we compute the probability of loss of confinement (i.e., global chaos), Pc provides an upper bound for the escape rate, and that Pt rovides a good estimate of the particle trapping rate. Lastly. the analytical results are compared with direct numerical Monte-Carlo simulations of particle transport.
- Authors:
-
- Univ. of Sao Paulo (Brazil)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Humboldt Univ. of Berlin (Germany). Physics Inst.
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1333071
- Alternate Identifier(s):
- OSTI ID: 1306688
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 23; Journal Issue: 8; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Fonseca, Julio, Del-Castillo-Negrete, Diego B., Sokolov, Igor M., and Caldas, Ibere L. A statistical study of gyro-averaging effects in a reduced model of drift-wave transport. United States: N. p., 2016.
Web. doi:10.1063/1.4961430.
Fonseca, Julio, Del-Castillo-Negrete, Diego B., Sokolov, Igor M., & Caldas, Ibere L. A statistical study of gyro-averaging effects in a reduced model of drift-wave transport. United States. https://doi.org/10.1063/1.4961430
Fonseca, Julio, Del-Castillo-Negrete, Diego B., Sokolov, Igor M., and Caldas, Ibere L. Thu .
"A statistical study of gyro-averaging effects in a reduced model of drift-wave transport". United States. https://doi.org/10.1063/1.4961430. https://www.osti.gov/servlets/purl/1333071.
@article{osti_1333071,
title = {A statistical study of gyro-averaging effects in a reduced model of drift-wave transport},
author = {Fonseca, Julio and Del-Castillo-Negrete, Diego B. and Sokolov, Igor M. and Caldas, Ibere L.},
abstractNote = {Here, a statistical study of finite Larmor radius (FLR) effects on transport driven by electrostatic driftwaves is presented. The study is based on a reduced discrete Hamiltonian dynamical system known as the gyro-averaged standard map (GSM). In this system, FLR effects are incorporated through the gyro-averaging of a simplified weak-turbulence model of electrostatic fluctuations. Formally, the GSM is a modified version of the standard map in which the perturbation amplitude, K0, becomes K0J0($\hat{p}$), where J0 is the zeroth-order Bessel function and $\hat{p}$ s the Larmor radius. Assuming a Maxwellian probability density function (pdf) for $\hat{p}$ , we compute analytically and numerically the pdf and the cumulative distribution function of the effective drift-wave perturba- tion amplitude K0J0($\hat{p}$). Using these results, we compute the probability of loss of confinement (i.e., global chaos), Pc provides an upper bound for the escape rate, and that Pt rovides a good estimate of the particle trapping rate. Lastly. the analytical results are compared with direct numerical Monte-Carlo simulations of particle transport.},
doi = {10.1063/1.4961430},
journal = {Physics of Plasmas},
number = 8,
volume = 23,
place = {United States},
year = {Thu Aug 25 00:00:00 EDT 2016},
month = {Thu Aug 25 00:00:00 EDT 2016}
}
Web of Science
Works referenced in this record:
Onset of stochasticity and the diffusion approximation in drift waves
journal, September 1985
- Horton, W.
- Plasma Physics and Controlled Fusion, Vol. 27, Issue 9
A universal instability of many-dimensional oscillator systems
journal, May 1979
- Chirikov, Boris V.
- Physics Reports, Vol. 52, Issue 5
Gyroaverage effects on nontwist Hamiltonians: Separatrix reconnection and chaos suppression
journal, May 2012
- del-Castillo-Negrete, D.; Martinell, J. J.
- Communications in Nonlinear Science and Numerical Simulation, Vol. 17, Issue 5
Stochastic E×B particle transport
journal, January 1984
- Kleva, Robert G.; Drake, J. F.
- Physics of Fluids, Vol. 27, Issue 7
Reduction of chaotic particle transport driven by drift waves in sheared flows
journal, November 2008
- Marcus, F. A.; Caldas, I. L.; Guimarães-Filho, Z. O.
- Physics of Plasmas, Vol. 15, Issue 11
Non-Gaussian transport in strong plasma turbulence
journal, March 2002
- Annibaldi, S. V.; Manfredi, G.; Dendy, R. O.
- Physics of Plasmas, Vol. 9, Issue 3
Gyrokinetic particle simulation model
journal, September 1987
- Lee, W. W.
- Journal of Computational Physics, Vol. 72, Issue 1
Test-Particle Transport in Strong Electrostatic Drift Turbulence with Finite Larmor Radius Effects
journal, June 1996
- Manfredi, G.; Dendy, R. O.
- Physical Review Letters, Vol. 76, Issue 23
Drift waves and transport
journal, April 1999
- Horton, W.
- Reviews of Modern Physics, Vol. 71, Issue 3
Gyroaverage effects on chaotic transport by drift waves in zonal flows
journal, February 2013
- Martinell, Julio J.; del-Castillo-Negrete, Diego
- Physics of Plasmas, Vol. 20, Issue 2
Drift wave test particle transport in reversed shear profile
journal, November 1998
- Horton, Wendell; Park, Hyoung-Bin; Kwon, Jae-Min
- Physics of Plasmas, Vol. 5, Issue 11
Area-preserving maps models of gyroaveraged E×B chaotic transport
journal, September 2014
- da Fonseca, J. D.; del-Castillo-Negrete, D.; Caldas, I. L.
- Physics of Plasmas, Vol. 21, Issue 9
Transport properties of energetic particles in a turbulent electrostatic field
journal, March 1997
- Manfredi, G.; Dendy, R. O.
- Physics of Plasmas, Vol. 4, Issue 3
Chaotic transport in zonal flows in analogous geophysical and plasma systems
journal, May 2000
- del-Castillo-Negrete, Diego
- Physics of Plasmas, Vol. 7, Issue 5
Chaotic diffusion across a magnetic field in a model of electrostatic turbulent plasma
journal, July 1988
- Pettini, Marco; Vulpiani, Angelo; Misguich, Jacques H.
- Physical Review A, Vol. 38, Issue 1
A method for determining a stochastic transition
journal, June 1979
- Greene, John M.
- Journal of Mathematical Physics, Vol. 20, Issue 6
Nonstandard Diffusion Properties of the Standard Map
journal, June 1998
- Bénisti, D.; Escande, D. F.
- Physical Review Letters, Vol. 80, Issue 22
Finite Larmor radius effects on nondiffusive tracer transport in a zonal flow
journal, October 2008
- Gustafson, K.; del-Castillo-Negrete, D.; Dorland, W.
- Physics of Plasmas, Vol. 15, Issue 10