A general empirically based microinstability transport model

G. Vlad, M. Marinucci, F. Romanelli, A. Cherubini, M. Erba, V.V. Parail, A. Taroni

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Abstract

A mixed Bohm-gyro-Bohm, shear dependent thermal diffusion coefficient to model the anomalous thermal transport in tokamaks is proposed. It is derived on the basis of recent findings on the radial correlation length of turbulent processes generated by small scale, collisionless, electrostatic microinstabilities (Romanelli, F., Zonca, F., Phys. Fluids B 5 (1993) 4081). The model has been used to describe standard L and H mode discharges of the JET, DIII-D and TFTR devices and JET pellet enhanced performance (PEP) and hot ion mode discharges successfully.
Original languageEnglish
Pages (from-to)557 - 570
Number of pages14
JournalNuclear Fusion
Volume38
Issue number4
DOIs
Publication statusPublished - 1998
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Condensed Matter Physics

Cite this

Vlad, G., Marinucci, M., Romanelli, F., Cherubini, A., Erba, M., Parail, V. V., & Taroni, A. (1998). A general empirically based microinstability transport model. Nuclear Fusion, 38(4), 557 - 570. https://doi.org/10.1088/0029-5515/38/4/307