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Title: | Global scaling of the heat transport in fusion plasmas | Authors: | Sara Moradi Johan Anderson Michele Romanelli Hyun-Tae Kim Minucci, S. Calabrò, Giuseppe JET contributors |
Journal: | PHYSICAL REVIEW RESEARCH | Issue Date: | 2020 | Abstract: | A global heat flux model based on a fractional derivative of plasma pressure is proposed for the heat transport in fusion plasmas. The degree of the fractional derivative of the heat flux, $\alpha$, is defined through the power balance analysis of the steady state. The model was used to obtain the experimental values of $\alpha$ for a large database of the JET Carbon-wall as well as ITER Like-wall plasmas. The findings show that the average fractional degree of the heat flux over the database for electrons is $\alpha \sim 0.8$, suggesting a global scaling between the net heating and the pressure profile in the JET plasmas. The model is expected to provide an accurate and a simple description of heat transport that can be used in transport studies of fusion plasmas. |
URI: | http://hdl.handle.net/2067/46249 | ISSN: | 2643-1564 | DOI: | 10.1103/PhysRevResearch.2.013027 | Rights: | Attribution-NonCommercial-NoDerivs 3.0 United States |
Appears in Collections: | A1. Articolo in rivista |
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