Academic Journal
Estimation of turbulent transport coefficients by the conditional variance method ...
| العنوان: | Estimation of turbulent transport coefficients by the conditional variance method ... |
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| المؤلفون: | ASDEX Upgrade Team, W7-X Team, Tork, T., Manz, P., Bian, N. H., Reimold, F., Grenfell, G., Killer, C., Zholobenko, W. |
| بيانات النشر: | International Atomic Energy Agency (IAEA) |
| سنة النشر: | 2025 |
| المجموعة: | DataCite Metadata Store (German National Library of Science and Technology) |
| مصطلحات موضوعية: | turbulence, turbulent transport, diffusion coefficient, conditional moment |
| الوصف: | A novel approach for estimating turbulent transport coefficients in fusion devices is presented. The diagnostic method is established on the analysis of the conditional variance of one-point time series of density or temperature fluctuations. It is tested on data obtained from probe measurements in the edge of the tokamak ASDEX Upgrade and the stellarator Wendelstein 7-X, and on synthetic data from the gyrofluid transport model GEMR. The approach demonstrates a remarkable degree of accuracy, typically within a factor of two of the actual transport measured by more difficult means. It is a simple and accurate way of evaluating turbulent particle and heat transport coefficients that does not require measurements of the velocity fluctuations. ... |
| نوع الوثيقة: | article in journal/newspaper text |
| اللغة: | English |
| DOI: | 10.5445/ir/1000177866 |
| الاتاحة: | https://dx.doi.org/10.5445/ir/1000177866 https://publikationen.bibliothek.kit.edu/1000177866 |
| Rights: | Creative Commons Namensnennung 4.0 International ; Open Access ; info:eu-repo/semantics/openAccess ; https://creativecommons.org/licenses/by/4.0/deed.de |
| رقم الانضمام: | edsbas.7A93C72E |
| قاعدة البيانات: | BASE |
| DOI: | 10.5445/ir/1000177866 |
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