Zobrazeno 1 - 10
of 61
pro vyhledávání: '"T. Korpilo"'
Publikováno v:
Contributions to Plasma Physics. 56:549-554
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee6b85e0040765ca8543566dbbf95d06
https://doi.org/10.1002/ctpp.201610046
https://doi.org/10.1002/ctpp.201610046
Autor:
Susan Leerink, L. A. Esipov, T. Korpilo, S. I. Lashkul, M. Yu. Kantor, R. Rochford, D. V. Kouprienko, E. Z. Gusakov, Timo Kiviniemi, Artur Perevalov, A. B. Altukhov, A. D. Gurchenko, P. Niskala
Publikováno v:
Plasma Physics and Controlled Fusion
Isotope effect allows fusion devices to perform better when heavier hydrogen isotopes are used as fuel, but the reason for this improvement is not yet understood. We present the first direct evidence of the isotope effect on particle confinement in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ead0124c2cbca9df91ba791f00bed9cf
Autor:
T. Korpilo, E. Z. Gusakov, Susan Leerink, Timo Kiviniemi, P. Niskala, A. D. Gurchenko, Artur Perevalov, Salomon Janhunen, Jukka Heikkinen
Publikováno v:
Computer Physics Communications
Korpilo, T, Gurchenko, A D, Gusakov, E Z, Heikkinen, J A, Janhunen, S J, Kiviniemi, T P, Leerink, S, Niskala, P & Perevalov, A A 2016, ' Gyrokinetic full-torus simulations of ohmic tokamak plasmas in circular limiter configuration ', Computer Physics Communications, vol. 203, pp. 128-137 . https://doi.org/10.1016/j.cpc.2016.02.021
Korpilo, T, Gurchenko, A D, Gusakov, E Z, Heikkinen, J A, Janhunen, S J, Kiviniemi, T P, Leerink, S, Niskala, P & Perevalov, A A 2016, ' Gyrokinetic full-torus simulations of ohmic tokamak plasmas in circular limiter configuration ', Computer Physics Communications, vol. 203, pp. 128-137 . https://doi.org/10.1016/j.cpc.2016.02.021
The gyrokinetic full 5D particle distribution code ELMFIRE has been extended to simulate circular tokamak plasmas from the magnetic axis to the limiter scrape-off-layer. The predictive power of the code in the full-torus configuration is tested via i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4a1f40134ac8691c3b33eb09b282910
Autor:
Antti Snicker, T. Korpilo, M. Schneller, Taina Kurki-Suonio, Eero Hirvijoki, Emanuele Poli, Philipp Lauber
Publikováno v:
Computer Physics Communications. 183:2589-2593
Magnetohydrodynamical instabilities such as Alfven Eigenmodes and Neoclassical tearing modes redistribute energetic particles and, thus, potentially endanger the confinement of, e.g., fusion born alphas in Tokamaks. The orbit-following studies so far
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6b600d39e5ec0dcd7531f588bf1c5e3
https://doi.org/10.1016/j.cpc.2012.07.009
https://doi.org/10.1016/j.cpc.2012.07.009
Publikováno v:
Contributions to Plasma Physics. 52:406-411
Full-f gyrokinetic simulations starting from real experimental TEXTOR profiles are shown to include all the physics ingredients to maintain the steep density profile in H-mode. For L-mode profiles, strong geodesic acoustic modes (GAMs) are observed t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f92238420b22e61fc2eedec03998749
https://doi.org/10.1002/ctpp.201210024
https://doi.org/10.1002/ctpp.201210024
Autor:
R. Rochford, E. Z. Gusakov, Susan Leerink, V. A. Kornev, S. V. Krikunov, A. A. Belokurov, N. A. Zhubr, L. G. Askinazi, T. Korpilo, A. S. Tukachinsky, S. V. Lebedev, L. Chôné, P. Niskala, A.I. Smirnov, Timo Kiviniemi
Publikováno v:
Nuclear Fusion. 58:112007
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f79a1925db8e9a05b66db30a86657e3e
https://doi.org/10.1088/1741-4326/aac4e9
https://doi.org/10.1088/1741-4326/aac4e9
Autor:
Francisco Ogando, Jukka Heikkinen, Susan Leerink, T. Korpilo, Salomon Janhunen, Timo Kiviniemi
Publikováno v:
Korpilo, T, Heikkinen, J, Janhunen, S J, Kiviniemi, T P, Leerink, S & Ogando, F 2013, ' Numerically stable method for kinetic electrons in gyrokinetic particle-in-cell simulation of toroidal plasmas ', Journal of Computational Physics, vol. 239, pp. 22-29 . https://doi.org/10.1016/j.jcp.2012.12.033
The direct implicit method with a second-order implicit integration scheme is formulated for and applied to the electron parallel nonlinearity in global electrostatic gyrokinetic particle-in-cell simulations of toroidal fusion plasmas. The method sho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6cbb56ccd2b62207f7770ce72d479a3
https://cris.vtt.fi/en/publications/f1e281d3-80ac-4940-bcfe-25e373ad0338
https://cris.vtt.fi/en/publications/f1e281d3-80ac-4940-bcfe-25e373ad0338
Autor:
A. Yu. Yashin, Timo Kiviniemi, V. A. Kornev, A. A. Belokurov, S. V. Krikunov, M Machielsen, A. S. Tukachinsky, Susan Leerink, A. D. Gurchenko, N. A. Zhubr, L. G. Askinazi, E. Z. Gusakov, V. V. Bulanin, S. V. Lebedev, A. V. Petrov, P. Niskala, T. Korpilo
Publikováno v:
Plasma Physics and Controlled Fusion. 59:014037
Based on experimental observations using the TUMAN-3M and FT-2 tokamaks, and the results of gyrokinetic modeling of the interplay between turbulence and the geodesic acoustic mode (GAM) in these installations, a simple model is proposed for the analy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0677c7c61953e34ae3b3eb561ad89f90
https://doi.org/10.1088/0741-3335/59/1/014037
https://doi.org/10.1088/0741-3335/59/1/014037
Autor:
A. D. Gurchenko, Susan Leerink, T. Korpilo, Salomon Janhunen, A. V. Petrov, Jukka Heikkinen, M. Yu. Kantor, A. B. Altukhov, D. V. Kuprienko, Timo Kiviniemi, Victor Bulanin, L. A. Esipov, E. Z. Gusakov, S. I. Lashkul
Publikováno v:
Leerink, S, Bulanin, V V, Gurchenko, A D, Gusakov, E Z, Heikkinen, J, Janhunen, S J, Lashkul, S I, Altukhov, A B, Esipov, L A, Kantor, M Y, Kiviniemi, T P, Korpilo, T, Kuprienko, D V & Petrov, A V 2012, ' Multiscale investigations of drift-wave turbulence and plasma flows : Measurements and total-distribution-function gyrokinetic simulations ', Physical Review Letters, vol. 109, no. 16, 165001 . https://doi.org/10.1103/PhysRevLett.109.165001
Direct measurements of micro-, meso-, and macroscale transport phenomena in the FT-2 tokamak are shown to be quantitatively reproduced by global full $f$ nonlinear gyrokinetic simulation predictions. A detailed agreement with mean equilibrium $E\ifmm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f8917d7c1d32a782cd831a77be0f24e
https://cris.vtt.fi/en/publications/2968195a-a19f-49cf-833a-377cd176c51d
https://cris.vtt.fi/en/publications/2968195a-a19f-49cf-833a-377cd176c51d
Autor:
Timo Kiviniemi, Susan Leerink, T. Korpilo, Francisco Ogando, Jukka Heikkinen, Salomon Janhunen
Publikováno v:
Heikkinen, J A, Korpilo, T, Janhunen, S J, Kiviniemi, T P, Leerink, S & Ogando, F 2012, ' Interpolation for momentum conservation in 3D toroidal gyrokinetic particle simulation of plasmas ', Computer Physics Communications, vol. 183, no. 8, pp. 1719-1727 . https://doi.org/10.1016/j.cpc.2012.03.013
A linear momentum conserving interpolation for the electric field in a three-dimensional toroidal particle-in-cell gyrokinetic plasma simulation in a tokamak configuration is found unstable due to the false divergence of E → × B → flow of partic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8b4bd9507c52cbc7c0225bd0a5535e5
https://cris.vtt.fi/en/publications/f6425217-b463-42aa-bd66-50fcf9f866d9
https://cris.vtt.fi/en/publications/f6425217-b463-42aa-bd66-50fcf9f866d9