FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

Validation studies of gyrokinetic ITG and TEM turbulence simulations in a JT-60U tokamak using multiple flux matching

Motoki Nakata, Mitsuru Honda, Maiko Yoshida, Hajime Urano, Masanori Nunami, Shinya Maeyama, Tomo-Hiko Watanabe, Hideo Sugama2016年被引用 28Nuclear FusionIF 3出版社

Quantitative validation studies of flux-tube gyrokinetic Vlasov simulations on ion and electron heat transport are carried out for the JT-60U tokamak experiment. The ion temperature gradient (ITG) and/or trapped electron modes (TEM) driven turbulent transport and zonal flow generations are investigated for an L-mode plasma in the local turbulence limit with a sufficiently small normalized ion thermal gyroradius and weak mean radial electric fields. Nonlinear turbulence simulations by the GKV code successfully reproduce radial profiles of the ion and electron energy fluxes in the core region. The numerical results show that the TEM-driven zonal flow generation in the outer region is more significant than that in the core region with ITG- and ITG–TEM-dominated turbulence, leading to moderate transport shortfall of the ion energy flux. Error levels in the prediction of the ion and electron temperature gradient profiles in the core region are estimated as less than , based on a multiple flux matching technique, where the simulated ion and electron energy fluxes are simultaneously matched to the experimental values.

日本語訳

JT-60Uトカマク実験におけるイオン及び電子熱輸送に関するフラックスチューブ型ジャイロ運動論的Vlasovシミュレーションの定量的検証研究を実施した。局所乱流極限、すなわち十分に小さい規格化イオン熱ジャイロ半径と弱い平均電場を有するLモードプラズマにおいて、イオン温度勾配(ITG)駆動及び/または捕捉電子モード(TEM)駆動の乱流輸送と帯状流生成を調べた。GKVコードによる非線形シミュレーションは、コア領域におけるイオン及び電子エネルギー束の動径分布を良好に再現した。数値結果は、外側領域におけるTEM駆動の帯状流生成が、ITG及びITG-TEM混合駆動の乱流が支配的なコア領域よりも顕著であり、その結果イオンエネルギー束の輸送不足が中程度に留まることを示した。イオン及び電子温度勾配分布の予測誤差は、シミュレーションによるイオン及び電子エネルギー束を実験値に同時に一致させる多重フラックス整合手法に基づき、コア領域において〇〇%未満と評価された。

wiki

GyrokineticJT-60UIon temperature gradient
この論文にはまだAI要約がありません。

関連論文

Turbulent transport of heat and particles in a high ion temperature discharge of the Large Helical Device

2015Nuclear Fusion

On the role of ion temperature gradient turbulence in driving ion thermal transport in neutral beam injection-heated L-mode plasmas in a superconducting tokamak

2025Nuclear Fusion

The role of ion and electron-scale turbulence in setting heat and particle transport in the DIII-D ITER baseline scenario

2021Nuclear Fusion

Gyrokinetic profile prediction and validation of a negative triangularity plasma in ASDEX Upgrade

2025Nuclear Fusion

Gyrokinetic turbulence modeling of a high performance scenario in JT-60SA

2024Nuclear Fusion

How accurate are flux-tube (local) gyrokinetic codes in modeling energetic particle effects on core turbulence?

2023Nuclear Fusion

ITG turbulence in gyrokinetic simulations of high collisionality spherical tokamak plasmas

2025Nuclear Fusion

Testing predictions of electron scale turbulent pedestal transport in two DIII-D ELMy H-modes

2021Nuclear Fusion

Non-linear gyrokinetic simulations of microturbulence in TCV electron internal transport barriers

2011Plasma Physics and Controlled Fusion

Heat transport driven by the ion temperature gradient and electron temperature gradient instabilities in ASDEX Upgrade H-modes

2019Nuclear Fusion