Global scaling of the heat transport in fusion plasmas

Sara Moradi; Johan Anderson; Michele Romanelli; Hyun Tae Kim; X. Litaudon; S. Abduallev; M. Abhangi; P. Abreu; M. Afzal; K. M. Aggarwal; T. Ahlgren; J. H. Ahn; Leena Aho-Mantila; N. Aiba; Markus Airila; R. Albanese; V. Aldred; D. Alegre; E. Alessi; P. Aleynikov; A. Alfier; A. Alkseev; M. Allinson; B. Alper; E. Alves; G. Ambrosino; R. Ambrosino; L. Amicucci; V. Amosov; E. Andersson Sundén; M. Angelone; M. Anghel; C. Angioni; L. Appel; C. Appelbee; P. Arena; M. Ariola; H. Arnichand; S. Arshad; A. Ash; N. Ashikawa; V. Aslanyan; O. Asunta; Antti Hakola; Seppo Koivuranta; Jari Likonen; Y. Liu; Antti Salmi; Paula Sirén; Tuomas Tala; JET Contributors

doi:10.1103/PhysRevResearch.2.013027

Global scaling of the heat transport in fusion plasmas

Sara Moradi, Johan Anderson, Michele Romanelli, Hyun Tae Kim, X. Litaudon, S. Abduallev, M. Abhangi, P. Abreu, M. Afzal, K. M. Aggarwal, T. Ahlgren, J. H. Ahn, Leena Aho-Mantila, N. Aiba, Markus Airila, R. Albanese, V. Aldred, D. Alegre, E. Alessi, P. AleynikovA. Alfier, A. Alkseev, M. Allinson, B. Alper, E. Alves, G. Ambrosino, R. Ambrosino, L. Amicucci, V. Amosov, E. Andersson Sundén, M. Angelone, M. Anghel, C. Angioni, L. Appel, C. Appelbee, P. Arena, M. Ariola, H. Arnichand, S. Arshad, A. Ash, N. Ashikawa, V. Aslanyan, O. Asunta, Antti Hakola, Seppo Koivuranta, Jari Likonen, Y. Liu, Antti Salmi, Paula Sirén, Tuomas Tala, JET Contributors

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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, α, is defined through the power balance analysis of the steady state. The model was used to obtain the experimental values of α for a large database of the Joint European Torus (JET) carbon-wall as well as ITER like-wall plasmas. The fractional degrees of the electron heat flux are found to be α<2, for all the selected pulses in the database, suggesting a deviation from the diffusive paradigm. Moreover, the results show that as the volume integrated input power is increased, the fractional degree of the electron heat flux converges to α∼0.8, indicating a global scaling between the net heating and the pressure profile in the high-power JET plasmas. The model is expected to provide insight into the proper kinetic description for the fusion plasmas and improve the accuracy of the heat transport predictions.

Original language	English
Article number	013027
Journal	Physical review research
Volume	2
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevResearch.2.013027
Publication status	Published - 8 Jan 2020
MoE publication type	A1 Journal article-refereed

Funding

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1103/PhysRevResearch.2.013027Licence: CC BY

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Moradi, S., Anderson, J., Romanelli, M., Kim, H. T., Litaudon, X., Abduallev, S., Abhangi, M., Abreu, P., Afzal, M., Aggarwal, K. M., Ahlgren, T., Ahn, J. H., Aho-Mantila, L., Aiba, N., Airila, M., Albanese, R., Aldred, V., Alegre, D., Alessi, E., ... JET Contributors (2020). Global scaling of the heat transport in fusion plasmas. Physical review research, 2(1), Article 013027. https://doi.org/10.1103/PhysRevResearch.2.013027

@article{4fbeef5cdc5b4a57a10a9cb81e56bbf2,

title = "Global scaling of the heat transport in fusion plasmas",

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, α, is defined through the power balance analysis of the steady state. The model was used to obtain the experimental values of α for a large database of the Joint European Torus (JET) carbon-wall as well as ITER like-wall plasmas. The fractional degrees of the electron heat flux are found to be α<2, for all the selected pulses in the database, suggesting a deviation from the diffusive paradigm. Moreover, the results show that as the volume integrated input power is increased, the fractional degree of the electron heat flux converges to α∼0.8, indicating a global scaling between the net heating and the pressure profile in the high-power JET plasmas. The model is expected to provide insight into the proper kinetic description for the fusion plasmas and improve the accuracy of the heat transport predictions.",

author = "Sara Moradi and Johan Anderson and Michele Romanelli and Kim, {Hyun Tae} and X. Litaudon and S. Abduallev and M. Abhangi and P. Abreu and M. Afzal and Aggarwal, {K. M.} and T. Ahlgren and Ahn, {J. H.} and Leena Aho-Mantila and N. Aiba and Markus Airila and R. Albanese and V. Aldred and D. Alegre and E. Alessi and P. Aleynikov and A. Alfier and A. Alkseev and M. Allinson and B. Alper and E. Alves and G. Ambrosino and R. Ambrosino and L. Amicucci and V. Amosov and Sund{\'e}n, {E. Andersson} and M. Angelone and M. Anghel and C. Angioni and L. Appel and C. Appelbee and P. Arena and M. Ariola and H. Arnichand and S. Arshad and A. Ash and N. Ashikawa and V. Aslanyan and O. Asunta and Antti Hakola and Seppo Koivuranta and Jari Likonen and Y. Liu and Antti Salmi and Paula Sir{\'e}n and Tuomas Tala and {JET Contributors}",

note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2020",

month = jan,

day = "8",

doi = "10.1103/PhysRevResearch.2.013027",

language = "English",

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Moradi, S, Anderson, J, Romanelli, M, Kim, HT, Litaudon, X, Abduallev, S, Abhangi, M, Abreu, P, Afzal, M, Aggarwal, KM, Ahlgren, T, Ahn, JH, Aho-Mantila, L, Aiba, N, Airila, M, Albanese, R, Aldred, V, Alegre, D, Alessi, E, Aleynikov, P, Alfier, A, Alkseev, A, Allinson, M, Alper, B, Alves, E, Ambrosino, G, Ambrosino, R, Amicucci, L, Amosov, V, Sundén, EA, Angelone, M, Anghel, M, Angioni, C, Appel, L, Appelbee, C, Arena, P, Ariola, M, Arnichand, H, Arshad, S, Ash, A, Ashikawa, N, Aslanyan, V, Asunta, O, Hakola, A, Koivuranta, S, Likonen, J, Liu, Y, Salmi, A, Sirén, P, Tala, T & JET Contributors 2020, 'Global scaling of the heat transport in fusion plasmas', Physical review research, vol. 2, no. 1, 013027. https://doi.org/10.1103/PhysRevResearch.2.013027

TY - JOUR

T1 - Global scaling of the heat transport in fusion plasmas

AU - Moradi, Sara

AU - Anderson, Johan

AU - Romanelli, Michele

AU - Kim, Hyun Tae

AU - Litaudon, X.

AU - Abduallev, S.

AU - Abhangi, M.

AU - Abreu, P.

AU - Afzal, M.

AU - Aggarwal, K. M.

AU - Ahlgren, T.

AU - Ahn, J. H.

AU - Aho-Mantila, Leena

AU - Aiba, N.

AU - Airila, Markus

AU - Albanese, R.

AU - Aldred, V.

AU - Alegre, D.

AU - Alessi, E.

AU - Aleynikov, P.

AU - Alfier, A.

AU - Alkseev, A.

AU - Allinson, M.

AU - Alper, B.

AU - Alves, E.

AU - Ambrosino, G.

AU - Ambrosino, R.

AU - Amicucci, L.

AU - Amosov, V.

AU - Sundén, E. Andersson

AU - Angelone, M.

AU - Anghel, M.

AU - Angioni, C.

AU - Appel, L.

AU - Appelbee, C.

AU - Arena, P.

AU - Ariola, M.

AU - Arnichand, H.

AU - Arshad, S.

AU - Ash, A.

AU - Ashikawa, N.

AU - Aslanyan, V.

AU - Asunta, O.

AU - Hakola, Antti

AU - Koivuranta, Seppo

AU - Likonen, Jari

AU - Liu, Y.

AU - Salmi, Antti

AU - Sirén, Paula

AU - Tala, Tuomas

AU - JET Contributors

N1 - Publisher Copyright: © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2020/1/8

Y1 - 2020/1/8

N2 - 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, α, is defined through the power balance analysis of the steady state. The model was used to obtain the experimental values of α for a large database of the Joint European Torus (JET) carbon-wall as well as ITER like-wall plasmas. The fractional degrees of the electron heat flux are found to be α<2, for all the selected pulses in the database, suggesting a deviation from the diffusive paradigm. Moreover, the results show that as the volume integrated input power is increased, the fractional degree of the electron heat flux converges to α∼0.8, indicating a global scaling between the net heating and the pressure profile in the high-power JET plasmas. The model is expected to provide insight into the proper kinetic description for the fusion plasmas and improve the accuracy of the heat transport predictions.

AB - 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, α, is defined through the power balance analysis of the steady state. The model was used to obtain the experimental values of α for a large database of the Joint European Torus (JET) carbon-wall as well as ITER like-wall plasmas. The fractional degrees of the electron heat flux are found to be α<2, for all the selected pulses in the database, suggesting a deviation from the diffusive paradigm. Moreover, the results show that as the volume integrated input power is increased, the fractional degree of the electron heat flux converges to α∼0.8, indicating a global scaling between the net heating and the pressure profile in the high-power JET plasmas. The model is expected to provide insight into the proper kinetic description for the fusion plasmas and improve the accuracy of the heat transport predictions.

UR - http://www.scopus.com/inward/record.url?scp=85085553415&partnerID=8YFLogxK

U2 - 10.1103/PhysRevResearch.2.013027

DO - 10.1103/PhysRevResearch.2.013027

M3 - Article

AN - SCOPUS:85085553415

SN - 2643-1564

VL - 2

JO - Physical review research

JF - Physical review research

IS - 1

M1 - 013027

ER -

Global scaling of the heat transport in fusion plasmas

Abstract

Funding

UN SDGs

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