Prandtl Number of Toroidal Plasmas

Kimitaka Itoh, Sanae I. Itoh, Atsushi Fukuyama, Masatoshi Yagi, Masafumi Azumi

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Theory of the L-mode confinement in toroidal plasmas is developed. The Prandtl number, the ratio between the ion viscosity and the thermal conductivity is obtained for the anomalous transport process which is caused by the self-sustained turbulence in the toroidal plasma. It is found that the Prandtl number is of order unity both for the ballooning mode turbulence in tokamaks and for the interchange mode turbulence in helical system. The influence on the anomalous transport and fluctuation level is evaluated. Hartmann number and magnetic Prandtl number are also discussed.

Original languageEnglish
Pages (from-to)4269-4276
Number of pages8
Journaljournal of the physical society of japan
Volume62
Issue number12
DOIs
Publication statusPublished - Jan 1 1993

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Itoh, K., Itoh, S. I., Fukuyama, A., Yagi, M., & Azumi, M. (1993). Prandtl Number of Toroidal Plasmas. journal of the physical society of japan, 62(12), 4269-4276. https://doi.org/10.1143/JPSJ.62.4269