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Abstract

The results of simulations of several JET L-mode and ohmic discharges performed with a Bohm-like expression for both ion and electron thermal diffusivities are presented. Comparisons with experimental ion and electron temperature profiles of auxiliary heated discharges show that chi(i) has to be at least twice as large as chi(e) to simulate the L-mode regime even for shots with dominant electron heating. Simulations of ohmic discharges with currents ranging from 1 to 7 MA show that the Bohm-like model for L-mode has to be preferred to a Neoalcator-like expression of the electron thermal diffusivities.

Additional information

Authors: ERBA M, JET Joint Undertaking, Abingdon, Oxon. (GB);PARAIL V, JET Joint Undertaking, Abingdon, Oxon. (GB);SPRINGMANN E, JET Joint Undertaking, Abingdon, Oxon. (GB);TARONI A, JET Joint Undertaking, Abingdon, Oxon. (GB)
Bibliographic Reference: Report: JET-R(95)02 EN (1995) 24 pp.
Availability: Available from the Publications Officer, JET Joint Undertaking, Abingdon, Oxon. OX14 3EA (GB)
Record Number: 199510623 / Last updated on: 1995-06-06
Category: PUBLICATION
Original language: en
Available languages: en