An overview of intrinsic torque and momentum transport bifurcations in toroidal plasmas

P. H. Diamond, Y. Kosuga, O. D. Gürcan, C. J. McDevitt, T. S. Hahm, N. Fedorczak, J. E. Rice, W. X. Wang, S. Ku, J. M. Kwon, G. Dif-Pradalier, J. Abiteboul, L. Wang, W. H. Ko, Y. J. Shi, K. Ida, W. Solomon, H. Jhang, S. S. Kim, S. YiS. H. Ko, Y. Sarazin, R. Singh, C. S. Chang

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Abstract

An overview of the physics of intrinsic torque is presented, with special emphasis on the phenomenology of intrinsic toroidal rotation in tokamaks, its theoretical understanding, and the variety of momentum transport bifurcation dynamics. Ohmic reversals and electron cyclotron heating-driven counter torque are discussed in some detail. Symmetry breaking by lower single null versus upper single null asymmetry is related to the origin of intrinsic torque at the separatrix.

Original languageEnglish
Article number104019
JournalNuclear Fusion
Volume53
Issue number10
DOIs
Publication statusPublished - Oct 2013

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

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    Diamond, P. H., Kosuga, Y., Gürcan, O. D., McDevitt, C. J., Hahm, T. S., Fedorczak, N., Rice, J. E., Wang, W. X., Ku, S., Kwon, J. M., Dif-Pradalier, G., Abiteboul, J., Wang, L., Ko, W. H., Shi, Y. J., Ida, K., Solomon, W., Jhang, H., Kim, S. S., ... Chang, C. S. (2013). An overview of intrinsic torque and momentum transport bifurcations in toroidal plasmas. Nuclear Fusion, 53(10), [104019]. https://doi.org/10.1088/0029-5515/53/10/104019