Validation of a new mixed Bohm/gyro-Bohm model for electron and ion heat transport against the ITER, Tore Supra and START database discharges

被引：80

作者：

Erba, M ^{[1
]}

Aniel, T ^{[1
]}

Basiuk, V ^{[1
]}

Becoulet, A ^{[1
]}

Litaudon, X ^{[1
]}

机构：

[1] EURATOM, CEA, Dept Rech Fus Controlee, Ctr Etud Cadarache, St Paul Les Durance, France

来源：

NUCLEAR FUSION | 1998年 / 38卷 / 07期

关键词：

D O I：

10.1088/0029-5515/38/7/305

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A new model based on a combination of a Bohm-like term plus a gyro-Bohm-like term is proposed for the electron and ion heat diffusivity in the L mode regime, which is the commonest regime of operation of tokamaks. This model is derived using the dimensionless analysis technique taking into account the indications of scaling laws for the global confinement time and other experimental constraints on the diffusivity. The model has been successfully tested against data from several different experiments from the ITER database and the local Tore Supra database. Statistical analysis has shown it to perform better than purely Bohm or gyro-Bohm models and global scaling laws in the chosen dataset.

引用

页码：1013 / 1028

页数：16

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