Display options
Cite
Moyer RA, Tynan GR, Holland C, et al. Increased nonlinear coupling between turbulence and low-frequency fluctuations at the L-H transition. Phys Rev Lett. 2001;87(13):135001doi: 10.1103/PhysRevLett.87.135001.
Moyer, R. A., Tynan, G. R., Holland, C., & Burin, M. J. (2001). Increased nonlinear coupling between turbulence and low-frequency fluctuations at the L-H transition. Physical review letters, 87(13), 135001. https://doi.org/10.1103/PhysRevLett.87.135001
Moyer, R A, et al. "Increased nonlinear coupling between turbulence and low-frequency fluctuations at the L-H transition." Physical review letters vol. 87,13 (2001): 135001. doi: https://doi.org/10.1103/PhysRevLett.87.135001
Moyer RA, Tynan GR, Holland C, Burin MJ. Increased nonlinear coupling between turbulence and low-frequency fluctuations at the L-H transition. Phys Rev Lett. 2001 Sep 24;87(13):135001. doi: 10.1103/PhysRevLett.87.135001. Epub 2001 Sep 04. PMID: 11580596.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2001 Sep 24;87(13):135001. doi: 10.1103/PhysRevLett.87.135001. Epub 2001 Sep 04.

Increased nonlinear coupling between turbulence and low-frequency fluctuations at the L-H transition.

Physical review letters

R A Moyer, G R Tynan, C Holland, M J Burin

Affiliations

  1. Mechanical and Aerospace Engineering Department, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, USA.

PMID: 11580596 DOI: 10.1103/PhysRevLett.87.135001

Abstract

The nonlinear coupling between small scale high-frequency turbulence and larger scale lower-frequency fluctuations increases transiently in transitions to improved confinement in the DIII-D tokamak. This increase starts before the rapid turbulence suppression and E x B shear-flow development in the region that becomes the H-mode transport barrier/shear flow region. After the transition, the coupling returns to L-mode levels. These results are consistent with expectations for spontaneous transitions to improved confinement triggered by a turbulence-driven sheared flow.

Publication Types