Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Aaro Järvinen"'
Publikováno v:
Nuclear Materials and Energy, 34:101347. Elsevier
Kit, A, Järvinen, A, Wiesen, S, Poels, Y, Frassinetti, L & JET Contributors 2023, ' Developing deep learning algorithms for inferring upstream separatrix density at JET ', Nuclear Materials and Energy, vol. 34, 101347 . https://doi.org/10.1016/j.nme.2022.101347
Kit, A, Järvinen, A, Wiesen, S, Poels, Y, Frassinetti, L & JET Contributors 2023, ' Developing deep learning algorithms for inferring upstream separatrix density at JET ', Nuclear Materials and Energy, vol. 34, 101347 . https://doi.org/10.1016/j.nme.2022.101347
Predictive and real-time inference capability for the upstream separatrix electron density, $n_\text{e, sep}$, is essential for design and control of core-edge integrated plasma scenarios. In this study, both supervised and semi-supervised machine le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13f7518ff1ae5aa4a8d7691be4e0148e
https://research.tue.nl/nl/publications/261bd202-3fd5-4f3e-92fc-2a2756719cca
https://research.tue.nl/nl/publications/261bd202-3fd5-4f3e-92fc-2a2756719cca
Publikováno v:
Nuclear Materials and Energy
Järvinen, A, Aho-Mantila, L, Lunt, T, Subba, F, Rubino, G & Xiang, L 2023, ' Parametric scaling of power exhaust in EU-DEMO alternative divertor simulations ', Nuclear Materials and Energy, vol. 34, 101378 . https://doi.org/10.1016/j.nme.2023.101378
Järvinen, A, Aho-Mantila, L, Lunt, T, Subba, F, Rubino, G & Xiang, L 2022, ' Parametric scaling of power exhaust in EU-DEMO alternative divertor simulations ', 25th International Conference on Plasma Surface Interaction in Controlled Fusion Devices, 13/06/22-17/06/22 .
VTT Technical Research Centre of Finland-PURE
Järvinen, A, Aho-Mantila, L, Lunt, T, Subba, F, Rubino, G & Xiang, L 2023, ' Parametric scaling of power exhaust in EU-DEMO alternative divertor simulations ', Nuclear Materials and Energy, vol. 34, 101378 . https://doi.org/10.1016/j.nme.2023.101378
Järvinen, A, Aho-Mantila, L, Lunt, T, Subba, F, Rubino, G & Xiang, L 2022, ' Parametric scaling of power exhaust in EU-DEMO alternative divertor simulations ', 25th International Conference on Plasma Surface Interaction in Controlled Fusion Devices, 13/06/22-17/06/22 .
VTT Technical Research Centre of Finland-PURE
Investigations of parametric scaling of power exhaust in the alternative divertor configuration (ADC) SOLPS-ITER simulation database of the EU-DEMO are conducted and compared to predictions based on the Lengyel model. The Lengyel model overpredicts t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6d89f7c683bea8ee238adfab30af575
http://arxiv.org/abs/2209.07830
http://arxiv.org/abs/2209.07830
Publikováno v:
Kit, A, Järvinen, A E, Frassinetti, L, Wiesen, S & JET Contributors 2023, ' Supervised learning approaches to modeling pedestal density ', Plasma Physics and Controlled Fusion, vol. 65, no. 4, 045003 . https://doi.org/10.1088/1361-6587/acb3f7
Pedestals are the key to conventional high performance plasma scenarios in tokamaks. However, high fidelity simulations of pedestal plasmas are extremely challenging due to the multiple physical processes and scales that are encompassed by tokamak pe
Publikováno v:
Järvinen, A, Aho-Mantila, L, Lunt, T, Subba, F, Rubino, G & Xiang, L 2022, ' Parametric scaling of power exhaust in EU-DEMO SOLPS-ITER simulations ', 4th IAEA Technical Meeting on Divertor Concepts, Vienna, Austria, 7/11/22-10/11/22 . < https://conferences.iaea.org/event/286/contributions/25156/ >
VTT Technical Research Centre of Finland-PURE
VTT Technical Research Centre of Finland-PURE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::5c2f126af2c6e3420fa79a3492012964
https://cris.vtt.fi/en/publications/01e358db-ca07-4a67-ba59-8d18c86690b1
https://cris.vtt.fi/en/publications/01e358db-ca07-4a67-ba59-8d18c86690b1
Publikováno v:
Zhao, M, Rognlien, T, Jarvinen, A & Joseph, I 2021, ' Ion temperature anisotropy in the tokamak scrape-off layer ', Plasma Physics and Controlled Fusion, vol. 63, no. 12, 125028 . https://doi.org/10.1088/1361-6587/ac32e5
Understanding tokamak exhaust-power heat loads on divertor plates depends critically on having a realistic model of the scrape-off layer (SOL) plasma. The Braginskii fluid model is often solved to understand the SOL plasma behavior. This model is bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a62b993302bb2db618bb94c1cd6ca45
https://cris.vtt.fi/en/publications/f1f27b31-ccb2-4fba-8d66-747a5cb0cfe2
https://cris.vtt.fi/en/publications/f1f27b31-ccb2-4fba-8d66-747a5cb0cfe2
Autor:
Joseph McClenaghan, David Weisberg, Adam McLean, Kedong Li, L. Wang, Huiqian Wang, J. Barr, Houyang Guo, J.G. Watkins, Xianzu Gong, Q.P. Yuan, A.M. Garofalo, David Eldon, Cameron Samuell, Aaro Järvinen, S. Ding
Publikováno v:
Nuclear Materials and Energy, Vol 27, Iss, Pp 100963-(2021)
Eldon, D, Wang, H Q, Wang, L, Barr, J, Ding, S, Garofalo, A, Gong, X Z, Guo, H Y, Järvinen, A E, Li, K D, McClenaghan, J, McLean, A G, Samuell, C M, Watkins, J G, Weisberg, D & Yuan, Q P 2021, ' An analysis of controlled detachment by seeding various impurity species in high performance scenarios on DIII-D and EAST ', Nuclear Materials and Energy, vol. 27, 100963 . https://doi.org/10.1016/j.nme.2021.100963
Eldon, D, Wang, H Q, Wang, L, Barr, J, Ding, S, Garofalo, A, Gong, X Z, Guo, H Y, Järvinen, A E, Li, K D, McClenaghan, J, McLean, A G, Samuell, C M, Watkins, J G, Weisberg, D & Yuan, Q P 2021, ' An analysis of controlled detachment by seeding various impurity species in high performance scenarios on DIII-D and EAST ', Nuclear Materials and Energy, vol. 27, 100963 . https://doi.org/10.1016/j.nme.2021.100963
Experiments at DIII-D and EAST have demonstrated simultaneous high confinement, divertor detachment, and active control of detachment level, all of which are required for ITER. Comparing detachment control via T e and J s a t , it appears that T e is
Autor:
Houyang Guo, J. Ren, Jose Boedo, J.G. Watkins, Anthony Leonard, M. Groth, Aaro Järvinen, Daniel Thomas, Huiqian Wang
Publikováno v:
Wang, H Q, Watkins, J G, Guo, H Y, Groth, M, Järvinen, A E, Leonard, A W, Ren, J, Thomas, D M & Boedo, J 2021, ' Effects of divertor electrical drifts on particle distribution and detachment near the divertor target plate in DIII-D ', Physics of Plasmas, vol. 28, no. 5, 052509 . https://doi.org/10.1063/5.0048609
Funding Information: This work is supported by the U.S. Department of Energy under Nos. DE-FC02–04ER54698, DE-AC05–06OR23100, and DE-AC04–94AL85000 and General Atomics Postdoctoral Research Participation Program administered by ORAU. Publisher
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1559d813b5c76a6757218942590aca99
https://cris.vtt.fi/en/publications/5d79aedb-f3ab-42b1-87d5-c7560a1ccdad
https://cris.vtt.fi/en/publications/5d79aedb-f3ab-42b1-87d5-c7560a1ccdad
Autor:
Colin Chrystal, Eric Hollmann, Cami Collins, Kathreen Thome, E.T. Hinson, T. Odstrcil, Brian Grierson, Carlos Paz-Soldan, Aaro Järvinen, Brian Victor, S.L. Allen
Publikováno v:
Victor, B S, Odstrcil, T, Paz-Soldan, C A, Grierson, B A, Hinson, E, Järvinen, A, Hollmann, E M, Chrystal, C, Collins, C S, Thome, K E & Allen, S L 2020, ' Impurity transport in the pedestal of H-mode plasmas with resonant magnetic perturbations ', Plasma Physics and Controlled Fusion, vol. 62, no. 9, 095021 . https://doi.org/10.1088/1361-6587/aba4bd
Experiments on DIII-D show that resonant magnetic perturbations (RMPs) reduce the impurity confinement time in the H-mode pedestal below that of naturally ELMy plasmas. STRAHL modeling of discharges with aluminum laser blow off (LBO) injection show i
Autor:
T. Eich, M. Brix, G. Sips, E. Joffrin, J. Schweinzer, M. Groth, E. Viezzer, Gennady Sergienko, G. Calabrò, H. Zohm, S. Wiesen, Aaro Järvinen, M. Wischmeier, P. Abreu, M.F. Stamp, E. Delabie, V. Huber, M. N. A. Beurskens, A. Kallenbach, C.G. Lowry, M. Bernert, D. Carralero, S. Jachmich, A. V. Chankin, F. Reimold, U. Kruezi, Ph. Mertens, S. Brezinsek, A. G. Meigs, H. G. Esser, Peter Lang, A. Huber, C. Guillemaut, G. F. Matthews, Ch. Linsmeier, A. Boboc, Jet Contributors, C. F. Maggi
Publikováno v:
idUS. Depósito de Investigación de la Universidad de Sevilla
Colegio Oficial de Psicólogos de Madrid
Järvinen, A & JET Contributors 2017, ' Comparative H-mode density limit studies in JET and AUG ', Nuclear Materials and Energy, vol. 12, pp. 100-110 . https://doi.org/10.1016/j.nme.2017.01.005
Nuclear Materials and Energy
idUS: Depósito de Investigación de la Universidad de Sevilla
Universidad de Sevilla (US)
Nuclear Materials and Energy, Vol 12, Iss, Pp 100-110 (2017)
Colegio Oficial de Psicólogos de Madrid
Järvinen, A & JET Contributors 2017, ' Comparative H-mode density limit studies in JET and AUG ', Nuclear Materials and Energy, vol. 12, pp. 100-110 . https://doi.org/10.1016/j.nme.2017.01.005
Nuclear Materials and Energy
idUS: Depósito de Investigación de la Universidad de Sevilla
Universidad de Sevilla (US)
Nuclear Materials and Energy, Vol 12, Iss, Pp 100-110 (2017)
Identification of the mechanisms for the H-mode density limit in machines with fully metallic walls, and their scaling to future devices is essential to find for these machines the optimal operational boundaries with the highest attainable density an
Autor:
D.A. Humphreys, Egemen Kolemen, Aaro Järvinen, M.L. Walker, Adam McLean, David Eldon, T.W. Petrie, Auna Moser, A.W. Hyatt, A.W. Leonard
Publikováno v:
Eldon, D, Kolemen, E, Humphreys, D A, Hyatt, A W, Järvinen, A, Leonard, A W, McLean, A G, Moser, A L, Petrie, T W & Walker, M L 2019, ' Advances in radiated power control at DIII-D ', Nuclear Materials and Energy, vol. 18, pp. 285-290 . https://doi.org/10.1016/j.nme.2019.01.010
Nuclear Materials and Energy, Vol 18, Iss, Pp 285-290 (2019)
Nuclear Materials and Energy, Vol 18, Iss, Pp 285-290 (2019)
Feedback control of radiated power from the lower divertor P rad, div, L has been implemented in the DIII-D Plasma Control System (PCS). A realtime sensor for P rad, div, L has been constructed from 12 foil bolometer channels which agrees with standa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0126d6a8c296c66fe754b73cdef4aa60
https://cris.vtt.fi/en/publications/5aa6faa9-514f-4910-87ab-76eb59271f79
https://cris.vtt.fi/en/publications/5aa6faa9-514f-4910-87ab-76eb59271f79