From ERwiki

Contents 1 Theory and simulation of energetic particle dynamics and ensuing collective behaviors in fusion plasmas 2 Objectives of the NLED project 2015-17 3 Main ongoing research activities in 2017 4 Activity Reports from previous years 5 Upcoming Web Seminars and Rehearsals 6 Publications/presentations in 2017 7 Publications/presentations in 2016 8 Publications/presentations in 2015 9 Publications/presentations in 2014

Theory and simulation of energetic particle dynamics and ensuing collective behaviors in fusion plasmas

[NonLinear Energetic particle Dynamics (NLED)]

Principal Investigator:

Fulvio Zonca

Project Participants:

Alessandro Biancalani, Alberto Bottino, Matthias Borchardt, Sergio Briguglio, Nakia Carlevaro, Claudio Di Troia, Remi Dumont, Matteo Faganello, Giuliana Fogaccia, Valeria Fusco, Xavier Garbet, Ralf Kleiber, Axel Könies, Philipp Lauber, Alexander Milovanov, Oleksiy Mishchenko, Giovanni Montani, Gregorio Vlad, Xin Wang

External Collaborators (not supported by NLED funding):

Ilija Chavdarovski (MPPC PostDoc Fellow), Michael Cole (PhD Student), Matteo Falessi (PhD Student), Thomas Hayward (PhD Student), Malik Idouakass (PhD Student), Pierluigi Migliano (PostDoc Fellow), Francesco Palermo (PostDoc Fellow), Mirjam Schneller (EUROfusion Fellow till Feb.1st 2016), Christoph Slaby (PhD Student), David Zarzoso (AMU Faculty)

Participating Research Institutions:

Aix Marseille Univerity, CEA Cadarache, ENEA Frascati, IPP Garching, IPP Greifswald

Objectives of the NLED project 2015-17

The main aim of this project proposal is to assess the essential physics elements for successful numerical simulation of Alfvénic fluctuations and energetic particle behaviors in fusion plasmas. A variety of numerical codes adopting both gyrokinetic as well as hybrid fluid-kinetic approaches will be employed to accomplish this task. Reference plasma scenarios, including these fundamental processes, will be extracted from experimental observations for carrying out numerical studies in conditions of practical interest. Meanwhile, the use of physical models of increasing complexity within numerical simulation codes will allow to clearly identify the importance of accounting for realistic plasma nonuniformity and magnetic field geometry for successful comparisons of numerical simulation results with experimental observations. Furthermore, benchmarking of codes developed for analyzing these physics in tokamak and stellarator devices will provide deeper insights.

Standardized numerical diagnostics, in particular for energetic-particle phase-space, have been developed as part of the 2014 NLED ER Project; and are foreseen as essential ingredient of this project proposal as well as prerequisite for verification of numerical simulation results and code benchmarking for both linear and nonlinear dynamics. Linear simulations will be focused on benchmarking numerical simulations of different types of Alfvénic oscillations with perturbative and non-perturbative fast particle drive; and on the analysis of electron- fishbone stability properties. Meanwhile, nonlinear simulations will address perturbative analyses of multi-mode (Alfvén Eigenmode) scenarios including realistic damping, as well as nonlinear electron-fishbone saturation and self-consistent supra-thermal electron transport. For long time-scale simulations, realistic energetic particle sources and collisions will be taken into account.

Main ongoing research activities in 2017

Activity Reports from previous years

• [1] 2014 NLED Activity Report. PDF
• [2] 2015 NLED Activity Report. PDF
• [3] 2016 NLED Mid-Term Report. PDF
• [4] 2016 NLED Activity Report. PDF

Upcoming Web Seminars and Rehearsals

• [1] First NLED Workshop, February 24 - 26, 2016, by remote participation. Agenda. PDF (Information on presentations and material can be requested from presenting authors.)
• [2] EPS - ICPP Rehearsals, June 24, 2016. Agenda. PDF. Rehearsals of presentations at the 43rd EPS Conference on Plasma Physics, Leuven, Belgium, July 4 -8 (Nakia Carlevaro, Michael Cole); and at the 18th International Congress on Plasma Physics, June 27 - July 1, Kaohsiung, Taiwan (Sergio Briguglio, David Zarzoso). (Information on presentations and material can be requested from presenting authors.)
• [3] Varenna-Lausanne Rehearsals, July 26, 2016. Agenda. PDF. Rehearsals of presentations at the Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Varenna, Italy, August 29 - September 2 (Alessandro Biancalani). (Information on presentations and material can be requested from presenting authors.)
• [4] 26th IAEA - FEC Rehearsals, September 20, 2016. Agenda. PDF. Rehearsals of presentations at the The 26th IAEA Fusion Energy Conference, Kyoto, Japan, October 17 - 22 (Alessandro Biancalani, Gregorio Vlad, Xin Wang). (Information on presentations and material can be requested from presenting authors.)
• [5] NLED Seminar by Philipp Lauber: Recent results within the NLED framework on GK-MHD comparison and analytical LIGKA FOW model; November 24, (2016) at 10.00 am. (Information on presentations and material can be requested from presenting authors.)
• [6] NLED Seminar by Matteo Falessi: Gyrokinetic Theory for particle transport in fusion plasmas; December 19, (2016) at 11.00 am. (Information on presentations and material can be requested from presenting authors.)

Publications/presentations in 2017

• [1] L Chen and F. Zonca On Energetic-Particle Excitations of Low-Frequency Alfvén Eigenmodes in Toroidal Plasma. Submitted to Physics of Plasmas 24, (2017).

Publications/presentations in 2016

• Complete list of publications and presentations in 2016.

Publications/presentations in 2015

• Complete list of publications and presentations in 2015.

Publications/presentations in 2014

• Complete list of publications and presentations in 2014.