Speaker
Prof.
MASAYUKI YOKOYAMA
(National Institute for Fusion Science)
Description
The integrated transport analysis suite, TASK3D-a (Analysis), has been developed to be capable for routine whole-discharge analyses of plasmas confined in three-dimensional (3D) magnetic configuration such as the LHD.
The routine dynamic energy balance analysis for NBI-heated plasmas was made possible in the first version released in September 2012, which consisted of four parts: LHD data interface, 3D equilibrium, heating, and energy balance analysis. The LHD data interface part automatically transfers experiment data registered on the LHD Analysed Data Server.
Recently, further extension has been conducted such as including ECH ray-tracing code, neoclassical transport code, and the module for creating data files to register in the International Stellarator-Heliotron Confinement and Profile Database. Inclusion of ECH ray-tracing code has significantly enhanced systematic energy transport analysis of ECH- (and NBI-) heated LHD plasmas. Neoclassical energy diffusion flux can also be routinely calculated by the implemented GSRAKE code, and thus, systematic comparison with experimental energy balance has been available. These kinds of data have been accumulated for elucidating turbulent transport contribution in a wide parameter space of LHD plasmas.
Utilizing the TASK3D-a development, the ISH-DB takes also an advantage from the LHD unified data that can be used verification and validation (V&V) studies of large simulation codes for Stellarator-Heliotrons. The TASK3D-a has already provided profiles and equilibrium data to several large-scale simulation codes such as gyrokinetic instability, energetic particles/Alfvén eigenmodes, and neoclassical plasma flows. The TASK3D-a data interface to ISH-DB has much simplified and enhanced V&V studies of large simulations.
Much further extensions should be pursued towards full-integration by incorporating modules for other physics process such as re-distribution of energetic particles, particle transport issues. The architecture of TASK3D-a is modularized, and thus transferable to any other Stellarator-Heliotron (even tokamaks) experiments. In this way, TASK3D-a will continue to give impacts on facilitating Stellarator-Heliotron research.
| Country or International Organization | Japan |
|---|---|
| Paper Number | FIP/P7-35 |
Primary author
Prof.
MASAYUKI YOKOYAMA
(National Institute for Fusion Science)
Co-authors
Dr
Akihiro Shimizu
(National Institute for Fusion Science)
Dr
Alexei Pankin
(Tech-X Corporation)
Dr
Chihiro Suzuki
(National Institute for Fusion Science)
Dr
David Gates
(PPPL)
Dr
Felix Warmer
(Max-Planck Institute for Plasma Physcis)
Dr
Katsumi Ida
(National Institute for Fusion Science)
Dr
Kunihiro Ogawa
(National Institute for Fusion Science)
Dr
Masahiko Emoto
(National Institute for Fusion Science)
Dr
Masahiko Sato
(National Institute for Fusion Science)
Prof.
Masaki Osakabe
(National Institute for Fusion Science)
Dr
Novimir Pablant
(Princeton Plasma Physics Laboratory)
Mr
Pietro Vincenzi
(Consorzio RFX)
Dr
Ryosuke Seki
(National Institute for Fusion Science)
Dr
Sadayoshi Murakami
(Kyoto University)
Dr
Shinsuke Satake
(National Institute for Fusion Science)
Dr
Takuya Goto
(National Institute for Fusion Science)
Dr
Tohru Tsujimura Ii
(National Institute for Fusion Science)
Dr
Yasuhiro Suzuki
(National Institute for Fusion Science)
Dr
Yasuo Yoshimura
(National Institute for Fusion Science)
