Zobrazeno 1 - 10
of 25
pro vyhledávání: '"B. Chapman-Oplopoiou"'
Autor:
D.R. Hatch, M.T. Kotschenreuther, P.-Y. Li, B. Chapman-Oplopoiou, J. Parisi, S.M. Mahajan, R. Groebner
Publikováno v:
Nuclear Fusion, Vol 64, Iss 6, p 066007 (2024)
This paper reports on the refinement (building on (Hatch D.R. et al 2022 Phys. Plasmas 29 062501)) and application of simple formulas for electron heat transport from electron temperature gradient (ETG) driven turbulence in the pedestal. The formulas
Externí odkaz:
https://doaj.org/article/202680f3ce5746d19a78df13509244cc
Autor:
L. Frassinetti, C. Perez von Thun, B. Chapman-Oplopoiou, H. Nyström, M. Poradzinski, J.C. Hillesheim, L. Horvath, C.F. Maggi, S. Saarelma, A. Stagni, G. Szepesi, A. Bleasdale, A. Chomiczewska, R.B. Morales, M. Brix, P. Carvalho, D. Dunai, A.R. Field, J.M. Fontdecaba, H.J. Sun, D.B. King, D. Kos, E. Kowalska, B. Labit, M. Lennholm, S. Menmuir, E. Rachlew, D.I. Refy, P.A. Schneider, E.R. Solano, N. Vianello, M. Vécsei, JET Contributors
Publikováno v:
Nuclear Fusion, Vol 63, Iss 11, p 112009 (2023)
The work describes the pedestal structure, transport and stability in an effective mass ( A _eff ) scan from pure deuterium to pure tritium plasmas using a type I ELMy H-mode dataset in which key parameters that affect the pedestal behaviour (normali
Externí odkaz:
https://doaj.org/article/591fd7960ef142aeb6f0359341252bbc
Autor:
P.-Y. Li, D.R. Hatch, B. Chapman-Oplopoiou, S. Saarelma, C.M. Roach, M. Kotschenreuther, S.M. Mahajan, G. Merlo, the MAST Team
Publikováno v:
Nuclear Fusion, Vol 64, Iss 1, p 016040 (2023)
The results of a gyrokinetic analysis of turbulent transport driven by the electron temperature gradient (ETG) in the MAST pedestal are presented. Local nonlinear simulations from the gyrokinetic code, GENE, show that heat flux produced by ETG turbul
Externí odkaz:
https://doaj.org/article/331f6e9d01254148a0460fbbfc2bf73c
Autor:
I. Predebon, D.R. Hatch, L. Frassinetti, L. Horvath, S. Saarelma, B. Chapman-Oplopoiou, T. Görler, C.F. Maggi, JET Contributors
Publikováno v:
Nuclear Fusion, Vol 63, Iss 3, p 036010 (2023)
We present a comparative transport analysis of the isotope mass dependence in the pedestal of two pairs of deuterium/hydrogen type I ELMy H-mode discharges in JET with ITER-like wall, one characterized by the same input power, the other one by the sa
Externí odkaz:
https://doaj.org/article/2ff1550d6b27425184437d04438c00c6
Publikováno v:
Physical Review Letters. 130
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13dd7c924fbe587029441311a26c52f9
https://doi.org/10.1103/physrevlett.130.105102
https://doi.org/10.1103/physrevlett.130.105102
Autor:
A R, Field, B, Chapman-Oplopoiou, J W, Connor, L, Frassinetti, D R, Hatch, C M, Roach, S, Saarelma
Publikováno v:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences. 381(2242)
A predictive model for the electron temperature profile of the H-mode pedestal is described, and its results are compared with the pedestal structure of JET-ILW plasmas. The model is based on a scaling for the gyro-Bohm normalized, turbulent electron
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b860b35913c2e21496817bd977b54869
https://pubmed.ncbi.nlm.nih.gov/36587822
https://pubmed.ncbi.nlm.nih.gov/36587822
Autor:
D. R. Hatch, C. Michoski, D. Kuang, B. Chapman-Oplopoiou, M. Curie, M. Halfmoon, E. Hassan, M. Kotschenreuther, S. M. Mahajan, G. Merlo, M. J. Pueschel, J. Walker, C. D. Stephens
Publikováno v:
Physics of Plasmas, 29(6):062501. American Institute of Physics
This paper reports on the development of reduced models for electron temperature gradient (ETG) driven transport in the pedestal. Model development is enabled by a set of 61 nonlinear gyrokinetic simulations with input parameters taken from pedestals
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e5bcab49c452832dd3d05f4deb62845
https://doi.org/10.1063/5.0087403
https://doi.org/10.1063/5.0087403
Akademický článek
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Autor:
J.F. Parisi, F.I. Parra, C.M. Roach, M.R. Hardman, A.A. Schekochihin, I.G. Abel, N. Aiba, J. Ball, M. Barnes, B. Chapman-Oplopoiou, D. Dickinson, W. Dorland, C. Giroud, D.R. Hatch, J.C. Hillesheim, J. Ruiz Ruiz, S. Saarelma, D. St-Onge, null JET Contributors
Nonlinear multiscale gyrokinetic simulations of a Joint European Torus edge pedestal are used to show that electron-temperature-gradient (ETG) turbulence has a rich three-dimensional structure, varying strongly according to the local magnetic-field c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80dc21345fc6fb1e19b0cde73552e58b
http://arxiv.org/abs/2203.00831
http://arxiv.org/abs/2203.00831
Autor:
B. Chapman-Oplopoiou, D.R. Hatch, A.R. Field, L. Frassinetti, J.C. Hillesheim, L. Horvath, C.F. Maggi, J.F. Parisi, C.M. Roach, S. Saarelma, J. Walker
Publikováno v:
Nuclear Fusion. 62:086028
We present the results of GENE gyrokinetic calculations based on a series of JET–ITER-like-wall (ILW) type I ELMy H-mode discharges operating with similar experimental inputs but at different levels of power and gas fuelling. We show that turbulenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11b53c1485db1465bf4b23ab2b0486d8
https://doi.org/10.1088/1741-4326/ac7476
https://doi.org/10.1088/1741-4326/ac7476