Gyrokinetic Particle Simulation of Turbulent Transport in Burning Plasmas

February 29 - March 1, 2008, UCSD La Jolla, CA

FRIDAY - 29 February 2008
SERF Building, CASS Room 329

9:30 AM P.H. Diamond (host): Welcome, Meeting Goals (5)

Leader: G. Tynan; Notes: I. Holod

- P.H. Diamond: Overview of GPS-TTBP Physics Plans (25 + 10)

- T.S. Hahm: Comment on CTEM Physics Studies - Theory Perspective (15 + 10)

- Y. Xiao: Report on CTEM Simulations Studies (15 + 10)

BREAK - CONTINENTAL BREAKFAST, SERF Building, CASS Room 383

Leader: T. S. Hahm; Notes: C. McDevitt

- W. Zhang: Report on Energetic Particle Scattering Studies (15 + 10)

- L. Chen: Comment on Synergy between Transport and EP Physics (15 + 10)

DISCUSSION: CTEM and Resonant Particle Physics: Physics Plan Formulation

LUNCH BREAK

1:30 PM Resume Meeting

Leader: L. Chen; Notes: Y. Xiao

- O. Gurcan: Comment on Momentum Transport Physics - Theory Perspective (15 + 10)

- I. Holod: Report on Momentum Transport Simulations (15 + 10)

- C. McDevitt: Comment on Momentum Transport by ES and EM Waves (10 + 5)

- T.S. Hahm: Brief Comment on Momentum Transport via CTEM in NSTX (5)

DISCUSSION: Momentum Transport Physics: Physics Plan Formulation

BREAK - Refreshments Served, SERF Building, CASS Room 329 (outside hallway)

Leader: G. Rewoldt; Notes: M. Malkov

- P.H. Diamond: Comments on Dynamics of "Non-locality" in Transport (10 + 5)

- F. Hinton: Developments in Zonal Flow Saturation Theory (10 + 5)

- T.S. Hahm: Rho-star/nu-star Scans and Non-locality in Transport (10 + 5)

DISCUSSION: Physics Plan Formulation: Spreading and Non-locality

DINNER

SATURDAY - 1 March 2008
SERF Building, CASS Room 329

9:30 AM Begin Meeting

Leader: W. Horton; Notes: P. Diamond

- C. Holland: Validation Studies Using Gyro with Synthetic Diagnostics-Lessons and Issues (30 + 10)

- G. Tynan: Comment on Issues in Validation - Experimentalist Perspective (20 + 10)

- Z. Lin: Update on GTC West Capabilities (10 + 5)

- W. Wang: Update on Turbulence Simulation Capabilities for Tokamak Experiment (10 + 5)

- G. Rewoldt: Studies with GTO Neo (10 + 5)

DISCUSSION: What Does "Validation" Really Mean and Entail?

BREAK CONTINENTAL BREAKFAST, SERF Building, CASS Room 383

Leader: F. Hinton; Notes: T.S. Hahm

- W. Horton: Comment on Lessons from ETG Model Validation Studies on Tore-Supra (15 + 10)

- Z. Lin: Comment on Physics Needs for Foundations of Modelling (15 + 10)

- A. White: Multi-Field Fluctuation Measurements for Validation Studies (10 + 5)

- S. Kaye: Comment on Fluctuation Results (10 + 5)

- P.H. Diamond: Comments on Validation Issues (10 + 5)

DISCUSSION: What is the Optimal Path for Validation using GTC?

1:00 PM Resume Meeting

Working Discussion:

Leader: P.H. Diamond; Notes: Z. Lin

What should GPS-TTBP DO in Validation

i.e. Discussion should aim to:

- orchestrate validation plan: topics, metrics, tools, i.e. what do we DO, precisely?

- identify focus areas and relate to physics
i.e. how do we make this more than chi-i plots, spectra plots?

- establish predictive capacity: i.e. does this lead anywhere substantive?

- relate to code development and verification
i.e. how can we accomplish this?