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EAST 托卡马克模拟 （ modelling ）现状

EAST 托卡马克模拟 （ modelling ）现状. 朱思铮 中科院等离子体物理研究所. Current status of EAST. Formation of non-circular tokamak plasmas with divertor in a fully superconducting magnet system using an advanced PCS (RTEFIT/isoflux) from DIII-D. Current status of EAST.

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EAST 托卡马克模拟 （ modelling ）现状

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  1. EAST托卡马克模拟（modelling）现状 朱思铮 中科院等离子体物理研究所

  2. Current status of EAST Formation of non-circular tokamak plasmas with divertor in a fully superconducting magnet system using an advanced PCS (RTEFIT/isoflux) from DIII-D

  3. Current status of EAST • LHCD sustained non-inductive diverted plasmas for 60 seconds

  4. Current status of EAST • Application of LH during the startup phase relieves the constraints on the superconducting coil system: • Lowering substantially the loop voltage at plasma breakdown with LH waves • Volt second savings during LHCD assisted plasma current ramp-up • Reduction of AC losses in the superconducting PF coils (LH) • EAST has moved from a construction phase to a research phase

  5. Modelling support of EAST • ASIPP has continued an extensive effort in building up a suite of essential modeling codes through international collaborations with U.S. and EU fusion laboratories. • - Plan EAST facility improvements • Support EAST research • GA-ASIPP joint integrated modeling development project • Develop new Integrated Modelingand Fitting Tool IMFITto support DIII-D, EAST, ITER • Modelling support strategy • In step with EAST program goals • In complement with EAST diagnostic development program • - High priority for possible EAST contributions to ITER

  6. Modelling of EAST discharge using TSC (PPPL) (a) plasma current (b) major radius (c) loop voltage and (d) electron temperature for EAST shot # 2422 PF currents for EAST shot #2422 for a pure ohmic EAST discharge experimental(grey) and simulated(black)

  7. Integrated modelingneeds for EAST plasma start-up • Integrate external environment with more complete transport module • Integrate LH in ramp-up scenarios • …

  8. Ti Te Total current density Predictions of NBI in EASTusing ONETWO + NUBEAM (IMFIT) Beam-driven current density Current profiles. Co-beam, 5MW.Total beam-driven current is 200kA. AT equilibrium of EAST constructed by TOQ with EAST shape and DIII-D AT profiles Temperature profiles. Co-beam and courter-beam, 10MW.

  9. Predictions of LHCD in EASTusing ONETWO(GA) + LSC(PPPL) LSC is integrated into ONETWO to model EAST discharges with LHCD (3MW) and NBI (3MW). The non-inductive current, including LHCD + NBI + bootstrap current, accounts for almost 80% of the total current Time evolution of electron and ion temperature profiles

  10. Modeling of ICRF in EASTusing TORIC (IPP-Garching, MIT) • Investigate a variety of ICRF heating schemes (30~110MHz, B0=3.2T ) • - fundamental minority heating in D(H) and D(3He) • Mode conversion in D(3He) and D(H) • - D harmonic heating D(H) (45MHz x=13.519 cm LFS) D(3He) (32MHz x=-0.720 cm on-axis) electron heating by IBW 15% 3He

  11. Integrated modelingneeds for EAST heating and current drive systems • Integrate ICRF antenna module with full-wave solver • Integrate RF and NB systems with FP for ions and electrons self-consistently • Integrate RF with edge plasmas • …

  12. Modeling of EAST SOL/divertor plasmasusing SOLPS (IPP-Garching)

  13. ns = 1.51019 m-3 Ne Modeling of EAST divertorusing SOLPS (IPP-Garching) localized Ne puffing is modeled investigate target power loading

  14. Integrated modelingneeds for EAST SOL/divertor plasmas • Integrate SOL/divertor module with wall and PSI processes • Integrate SOL/divertor module with edge/core • …

  15. EASTViewer Viewing EAST data & discharge parameters Features:Python & Java in open source; across OS; easy extensible

  16. GA-ASIPP joint integrated modeling development project - IMFIT • Development of new Integrated Modeling and Fitting Tool IMFIT • Near-term IMFIT goal is to support DIII-D and EAST • Equilibrium reconstruction, transport, • heating and current drive, and stability analyses • - Theory-experiment comparison • - Operation scenario development • Comprehensive features • - Easy interactions among modules • Convenient theory-experiment comparison and visualization to support • model validations • - New physics modules can be conveniently added

  17. GA-ASIPP joint integrated modeling development project - IMFIT L.L. Lao 1st IMEG Annual Meeting ITER Headquarters June 23-26, 2009

  18. Summary • EAST has moved from a construction phase to a research phase. • ASIPP has continued an extensive effort in building up a suite of essential modeling codes. • An Integrated Modeling and Fitting tool IMFIT (GA-ASIPP) is being developed to support DIII-D and EAST research.

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