Publications of R. Ramasamy

Journal Article (5)

1.
Journal Article
Ramasamy, R.; Hoelzl, M.; Henneberg, S.; Strumberger, E.; Lackner, K.; Günter, S.: How well can VMEC predict the initial saturation of external kink modes in near circular tokamaks and l = 2 stellarators? Physics of Plasmas 30, 062506 (2023)
2.
Journal Article
Nikulsin, N.; Ramasamy, R.; Hoelzl, M.; Hindenlang, F.; Strumberger, E.; Lackner, K.; Günter, S.; JOREK Team: JOREK3D: An extension of the JOREK nonlinear MHD code to stellarators. Physics of Plasmas 29, 063901 (2022)
3.
Journal Article
Ramasamy, R.; Bustos Ramirez, G.; Hoelzl, M.; Graves, J.; Suarez Lopez, G.; Lackner, K.; Günter, S.; JOREK Team: Modeling of saturated external MHD instabilities in tokamaks: A comparison of 3D free boundary equilibria and nonlinear stability calculations. Physics of Plasmas 29, 072303 (2022)
4.
Journal Article
Hoelzl, M.; Huijsmans, G. T. A.; Pamela, S. J. P.; Becoulet, M.; Nardon, E.; Artola, F. J.; Nkonga, B.; Atanasiu, C. V.; Bandaru, V.; Bhole, A. et al.; Bonfiglio, D.; Cathey, A.; Czarny, O.; Dvornova, A.; Feher, T.; Fil, A.; Franck, E.; Futatani, S.; Gruca, M.; Guillard, H.; Haverkort, J. W.; Holod, I.; Hu, D.; Kim, S. K.; Korving, S. Q.; Kos, L.; Krebs, I.; Kripner, L.; Latu, G.; Liu, F.; Merkel, P.; Meshcheriakov, D.; Mitterauer, V.; Mochalskyy, S.; Morales, J. A.; Nies, R.; Nikulsin, N.; Orain, F.; Pratt, J.; Ramasamy, R.; Ramet, P.; Reux, C.; Särkimäki, K.; Schwarz, N.; Singh Verma , P.; Smith, S. F.; Sommariva, C.; Strumberger, E.; Vugt, D. C. v.; Verbeek, M.; Westerhof, E.; Wieschollek, F.; Zielinski, J.: The JOREK non-linear extended MHD code and applications to large-scale instabilities and their control in magnetically confined fusion plasmas. Nuclear Fusion 61, 065001 (2021)
5.
Journal Article
Ramasamy, R.; Hoelzl, M.; Strumberger, E.; Lackner, K.; Günter, S.: Nonlinear MHD simulations of external kinks in quasi-axisymmetric stellarators using an axisymmetric external rotational transform approximation. Nuclear Fusion 61, 076017 (2021)

Meeting Abstract (2)

6.
Meeting Abstract
Nikulsin, N.; Hoelzl, M.; Zocco, A.; Ramasamy, R.; Lackner, K.; Günter, S.: Implementation and testing of stellarator-capable models in JOREK. In: Verhandlungen der Deutschen Physikalischen Gesellschaft, (VI) 55 (1), P 10.10. DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), Hannover, March 08, 2020 - March 13, 2020. DPG, Bad Honnef (submitted)
7.
Meeting Abstract
Ramasamy, R.; Hoelzl, M.; Strumberger, E.; Yu, Q.; Artola, J.; Lackner, K.; Günter, S.: Non-linear MHD Assessments of Stellarator-like Tokamaks. In: Verhandlungen der Deutschen Physikalischen Gesellschaft, (VI) 55 (1), P 16.3. DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), Hannover, March 08, 2020 - March 13, 2020. DPG, Bad Honnef (submitted)

Talk (3)

8.
Talk
Nikulsin, N.; Ramasamy, R.; Hoelzl, M.; Zocco, A.; Lackner, K.; Günter, S.: First results for stellarator simulations with JOREK. DPG-Tagung der Sektion Materie und Kosmos (SMuK), Virtual (submitted)
9.
Talk
Ramasamy, R.; Hoelzl, M.; Strumberger, E.; Suarez Lopez, G.; Henneberg, S.; Lackner, K.; Günter, S.: Simplified nonlinear MHD models of external kink modes in stellarators. DPG-Tagung der Sektion Materie und Kosmos (SMuK), Virtual (submitted)
10.
Talk
Nikulsin, N.; Hoelzl, M.; Ramasamy, R.; Zocco, A.; Lackner, K.; Günter, S.: Implementation and testing of stellarator-capable models in JOREK. 4th Asia Pacific Conference on Plasma Physics (AAPPS-DPP 2020), Virtual (submitted)

Poster (7)

11.
Poster
Aleynikova, K.; Ramasamy, R.; Nikulsin, N.; Hindenlang, F.; Hoelzl, M.; JOREK Team: Nonlinear tearing modes evolution and sawtooth crashes in a stellarator. 49th EPS Conference on Plasma Physics, Bordeaux (submitted)
12.
Poster
Hoelzl, M.; Huijsmans, G. T. A.; Artola, F. J.; Nardon, E.; Becoulet, M.; Pamela, S. J. P.; Nkonga, B.; Aleynikova, K.; Bandaru, V.; Bergström, H. et al.; Bhole, A.; Bogaarts, T.; Bonfiglio, D.; Cathey, A.; Driessen, T.; Futatani, S.; Hao, G.; Hindenlang, F.; Holod, I.; Hu, D.; Hu, S.; Isernia, N.; Isliker, H.; Kim, S. K.; Kong, M.; Korving, S.; Kos, L.; Krebs, I.; Lee, S. J.; Meier, L.; Mitterauer, V.; Nikulsin, N.; Ramasamy, R.; Reinking, J.; Rubinacci, G.; Särkimäki, K.; Schwarz, N.; Sommariva, C.; Sparago, R.; Tang, W.; Vannini, F.; Ventre, S.; Villone, F.; Wang, L.; Wang, H.-H.; Wieschollek, F.; Zielinski, J.: Non-linear MHD Modelling of Transients in Tokamaks: Recent Advances with the Jorek Code. 29th IAEA Fusion Energy Conference (FEC 2023), London (submitted)
13.
Poster
Ramasamy, R.; Aleynikova, K.; Nikulsin, N.; Hölzl, M.; Hindenlang, F.; JOREK team: Nonlinear MHD simulations of external kinks in classical l = 2 stellarators using JOREK. 49th EPS Conference on Plasma Physics, Bordeaux (submitted)
14.
Poster
Rogge, C. W.; Aleynikova, K.; Aleynikov, P.; Ramasamy, R.; Hoelzl, M.; Helander, P.: Dynamics of a pellet produced plasmoid in a stellarator. DPG-Frühjahrstagung 2024, Greifswald (submitted)
15.
Poster
Ramasamy, R.; Nikulsin, N.; Aleynikova, K.; Hoelzl, M.; Hindenlang, F.; Lackner, K.; Günter, S.; JOREK Team: Progress towards nonlinear MHD studies of optimised stellarators using the JOREK code. 23rd International Stellarator and Heliotron Workshop (ISHW 2022), Warsaw (submitted)
16.
Poster
Ramasamy, R.; Hoelzl, M.; Strumberger, E.; Yu, Q.; Lackner, K.; Günter, S.; JOREK Team: Non-linear MHD stability assessments of stellarators using an axisymmetric approximation. Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Lausanne (2021)
17.
Poster
Ramasamy, R.; Hoelzl, M.; Strumberger, E.; Nikulsin, N.; Lackner, K.; Günter, S.: Towards Linear and Non-linear Assessments of Quasi-axisymmetric Stellarators. 22nd International Stellarator and Heliotron Workshop 2019 (ISHW 2019), Madison, WI (submitted)

Thesis - PhD (1)

18.
Thesis - PhD
Ramasamy, R.: Equilibrium and initial value problem simulation studies of nonlinear magnetohydrodynamics in stellarators. Dissertation, 154 pp., Technische Universität München, München (2022)

Report (1)

19.
Report
Ramasamy, R.: Equilibrium and initial value problem simulation studies of nonlinear magnetohydrodynamics in stellarators. Max-Planck-Institut für Plasmaphysik, Garching (2022), 138 pp.
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