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

Comparison of fluid and kinetic models of target energy fluxes during edge localized modes

E Havlíčková, W Fundamenski, D Tskhakaya, G Manfredi, D Moulton2012年Plasma Physics and Controlled FusionIF 2.2出版社

Parallel transport associated with type I edge localized model (ELM) filaments in the scrape-off layer (SOL) is studied by means of three computational approaches—fluid, Vlasov and particle-in-cell (PIC). These techniques are benchmarked for convective transients by analysing power fluxes at the target. In spite of kinetic effects due to fast electrons which are not captured in the fluid code, the overall agreement between the codes is satisfactory. In addition, the collisionless Vlasov model agrees well with an analytic free-streaming model. The total peak energy flux at the target is comparable between the models, but the individual fractions of the flux carried by ion and electron components are determined by kinetic effects and processes in the sheath and the energy source in the fluid code is redistributed between electrons and ions in order to obtain the best match with the PIC model. From results for convective ELMs, approximate expressions for the energy fluence and the peak energy flux at the target are derived. Additionally, conductive ELMs are studied.

日本語訳

タイプI周辺局在モード(ELM)フィラメントに関連するスクレイプオフ層(SOL)内の輸送を、流体、ブラゾフ、粒子セル(PIC)の3つの計算手法を用いて研究する。これらの手法は、ターゲットにおけるパワーフラックスを解析することにより、対流性過渡現象に対してベンチマークされる。流体コードでは捕捉されない高速電子による運動論的効果にもかかわらず、コード間の全体的な一致は満足できるものである。さらに、無衝突ブラゾフモデルは、解析的な自由ストリーミングモデルとよく一致する。ターゲットにおける総ピークエネルギーフラックスはモデル間で同等であるが、イオンおよび電子成分によって運ばれる個々の割合は運動論的効果とシース内の過程によって決定され、流体コード内のエネルギー源はPICモデルとの最良の一致を得るために電子とイオンの間で再分配される。対流性ELMの結果から、ターゲットにおけるエネルギーフルエンスとピークエネルギーフラックスに対する近似式が導出される。さらに、伝導性ELMについても研究される。

wiki

Edge localized mode
この論文にはまだAI要約がありません。

関連論文

New heat flux model for non-axisymmetric divertor infrared structures

2021Nuclear Fusion

Non-local approach to kinetic effects on parallel transport in fluid models of the scrape-off layer

2013Plasma Physics and Controlled Fusion

Kinetic modelling of parallel ion transport in the scrape-off layer and divertor of inter-edge localised mode JET high radiative H-mode plasma

2020Plasma Physics and Controlled Fusion

Assessment of the strength of kinetic effects of parallel electron transport in the SOL and divertor of JET high radiative H-mode plasmas using EDGE2D-EIRENE and KIPP codes

2018Plasma Physics and Controlled Fusion

Nonlinear fluid simulation of particle and heat fluxes during burst of ELMs on DIII-D with BOUT++  code

2015Nuclear Fusion

Structure of nonlocality of plasma turbulence

2013Nuclear Fusion

A model of ELM filament energy evolution due to parallel losses

2006Plasma Physics and Controlled Fusion

Vlasov modelling of parallel transport in a tokamak scrape-off layer

2011Plasma Physics and Controlled Fusion

ELM transport in the JET scrape-off layer

2007Nuclear Fusion

Fluctuations and anomalous transport (in tokamaks, particularly TEXT)

1988Plasma Physics and Controlled Fusion