Extending the validation of multi-mode model for anomalous transport to high beta poloidal tokamak scenario in DIII-D
| Autor: | A.M. Garofalo, Tariq Rafiq, I. Holod, Jan Weiland, Alexei Pankin, Arnold H. Kritz |
|---|---|
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Physics of Plasmas. 25:052505 |
| ISSN: | 1089-7674 1070-664X |
| DOI: | 10.1063/1.5010339 |
| Popis: | The Multi-Mode Model (MMM7.1) for anomalous transport is tested in predictive modeling of temperature profiles of a high beta poloidal DIII-D discharge. This new H-mode plasma regime, with high beta poloidal and high bootstrap currents, has been studied in DIII-D tokamak discharges [A. Garofalo et al., Nucl. Fusion 55, 123025 (2015)]. The role of instabilities that can drive the anomalous transport described by MMM7.1 is investigated. The temperature profiles for a high beta poloidal DIII-D discharge are computed using the NCLASS model for the neoclassical transport and the Weiland and Electron Temperature Gradient (ETG) components of the MMM7.1 model for the anomalous transport. The neoclassical transport is found to be the main contributor to the ion thermal transport in the plasma core. The contributions from the ion temperature gradient driven modes are found to be important only outside of the internal transport barrier. The magnitudes of the predicted temperature profiles are found to be in a reason... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|