Conference Agenda

2025 Transport Taskforce Workshop Agenda

Monday, April 21, 2025

4:30-7:30pm: Welcome and Registration. Seattle Foyer (4th floor of conference hotel)

Tuesday, April 22, 2025

7:00-8:15am: Registration

8:15-8:30am: Welcome and Conference Commencement (Wilks, Snyder)

Plenary Session 1: Burning Plasmas (Rodriguez-Fernandez)

8:30-9:00am: "Turbulence-based predictions of core plasma performance for the Infinity Two stellarator Fusion Pilot Plant" (Guttenfelder)

9:00-9:30am: "Overview of transport modeling for SPARC H-modes: sensitivity of fusion performance to physics inputs" (Muraca)

9:30-10:00am: "Energetic particle transport, modeling, and diagnosis for SPARC" (Tinguely)

10:00-10:30am: Discussion

10:30-11:00am: Coffee and Tea

Contributed Session 1: Fusion Pilot Plant Projection (Snyder)

11:00-11:15am: "Predicted energetic ion transport in a Compact Advanced Tokamak (CAT) scenario" (Bass)

11:15-11:30am: "Stability Assessment and Nonlinear Gyrokinetic Transport Modeling for STAR Tokamak Design Using the GX Model in TRANSP" (Pankin)

11:30-11:45am: "On the effect of empirical model uncertainty on SPARC operational scenario predictions" (Saltzman)

11:45-12:00pm: "Impact of the isotope mass on divertor detachment and pedestal structure"  (Mattes)

12:00-12:30pm: Discussion

12:30-2pm: Lunch

2:00-3:30pm: Poster Session 1

3:30-4:00pm: Coffee and Tea

Contributed Session 2: Turbulence and Transport (Parisi)

4:00-4:15pm: "Reproduction of anomalously high tungsten transport coefficients in the far-SOL of DIII-D with Flan" (Zamperini)

4:15-4:30pm: "Towards Predicting Transport in High-Confinement Regimes with the Spectrally Accelerated full-f Gyrokinetic Code GENE-X" (Frei)

4:30-4:45pm: "Density turbulence modifications within the pedestal and scrape off layer during high-power helicon wave experiments on the DIII-D tokamak" (Damba)

4:45-5:00pm: "Edge turbulence dynamics near the density limit in DIII-D L-mode plasmas"  (Khabanov)

5:00-5:30pm: Discussion

6:00pm: Reception

Wednesday, April 23, 2025

Plenary Session 2: Impact of Density on Turbulence (Geiger)

8:30-9:00am: "High core performance with naturally small ELMs in DIII-D hybrid plasmas" (Victor)

9:00-9:30am: "Disentangling Density Limit Mechanisms in Negative Triangularity Plasmas on DIII-D" (Hong)

9:30-10:00am: "Impact of Density Profile Shaping on Trapped Electron Mode Turbulence and Confinement in the HSX Stellarator" (Richardson)

10:00-10:30am: Discussion

10:30-11:00am: Coffee and Tea

Contributed Session 3: Edge Turbulence in No-ELM Regimes (Houshmandyar)

11:00-11:15am: "Pedestal Profile Structure Trends for Quiescent H-modes in DIII-D" (Fleishhacker)

11:15-11:30am: "Heat flux width broadening induced by SOL Filaments in NSTX ELM-free H mode" (Gan)

11:30-11:45am: "Experimental Measurements of Turbulence and Zonal Flow Characteristics in DIII-D Negative Triangularity Plasmas using Beam Emission Spectroscopy"  (Stewart)

11:45-12:15pm: Discussion

12:15-2pm: Lunch

Contributed Session 4: Impacts of Shaping and 3D Effects on Turbulence (Parisi)

2:00-2:15pm: "Can turbulent transport in optimized stellarators be lower than tokamaks? "  (Chen)

2:15-2:30pm: "The Impact of 2D and 3D magnetic geometry on electromagnetic instabilities and turbulence" (Pueschel)

2:30-2:45pm: "Physics of ITG transport reduction in negative triangularity plasmas" (Singh)

2:45-3:00pm: "Multi-Scale MHD-Microturbulence Interactions in Magnetically Confined Plasmas"  (Jitsuk)

3:00-3:30pm: Discussion

3:30-4:00pm: Coffee and Tea

Contributed Session 5: Fueling and Particle Transport (Wilks)

4:00-4:15pm: " Interpretation of near X-point neutral spectroscopy measurements and consequences for particle transport" (Pratt)

4:15-4:30pm: "The Influence of Rotation and SOL Drifts on Poloidal Asymmetries of Pedestal Fueling" (Emdee)

4:30-4:45pm: "Fueling Evolution during the access to the Super H-mode Channel in Shape and Volume Rise (SVR) plasmas in DIII-D" (Balbin-Arias)

4:45-5:00pm: "Poloidal asymmetries in electron density in the edge and scrape-off layer in experiments and in full-F gyro-fluid simulation"  (Gerru)

5:00-5:30pm: Discussion

6:30pm: Banquet

Thursday, April 24, 2025

Plenary Session 3: Impurity Transport (Snyder)

8:30-9:00am: "Impact of High-Z Impurities on Turbulence and ELM Stability:  Insights from Advanced Two-Fluid and GLF Models" (Xu)

9:00-9:30am: "SICAS, a new integrated divertor-SOL-pedestal-core framework for self-consistent modeling of ion and impurity transport in fusion devices" (Welsh)

9:30-10:00am: "Gyrokinetic property of diverted edge plasma in a strongly negative-triangularity DIII-D equilibrium with carbon impurity" (Ku)

10:00-10:30am: Discussion

10:30-11:00am: Coffee and Tea

Contributed Session 6: High Collisionality ELM free Regimes (Orlov)

11:00-11:15am: "Exploring the Transition from Continuous Turbulence Fluctuations to Bursting ELMs in High SOL Density Regimes" (Li)

11:15-11:30am: "Stationary EDA H-mode regime in neutral beam heated discharges of DIII-D" (Barada)

11:30-11:45am: "Simulating plasma turbulence in detached X-point radiating regimes" (Eder)

11:45-12:00pm: "Comparisons between edge turbulence in EDA and QCE plasmas using the CECE diagnostic at ASDEX Upgrade"  (Schellpfeffer - remote)

12:00-12:30pm: Discussion

12:30-2pm: Lunch

1:00-2:00pm: STARS Townhall

2:00-3:30pm: Poster Session 2

3:30-4:00pm: Coffee and Tea

Contributed Session 7: New Capabilities (Bass)

4:00-4:15pm: "Merging Adjoint and Physics-Constrained Deep Learning Methods for Predicting Energetic Particle Evolution" (McDevitt)

4:15-4:30pm: "Expanding applications of turbulence measurement systems through AIs" (Joung)

4:30-4:45pm: "Quantifying Resolution Limits in Pedestal Profile Measurements with Gaussian Process Regression" (Cao)

4:45-5:00pm: "End-to-End Diagnostic Modeling Supporting ECE Diagnostics and NTM Mitigation for ITER"  (Ziegel)

5:00-5:30pm: Discussion

Friday, April 25, 2025

Plenary Session 4: Fundamental Turbulence and Instabilities (Orlov)

8:30-9:00am: "How 'the tail wags the dog': physics of edge-core coupling by inward turbulence spreading" (Cao)

9:00-9:30am: "Breakdown of Quasilinear Theory in the Tokamak Edge" (Ashourvan)

9:30-10:00am: "Axisymmetric, Localized Shear Flows Suppressing Turbulence in the Presence of Multiple Alfven Eigenmodes in DIII-D" (Schmitz)

10:00-10:30am: Discussion

10:30-11:00am: Coffee and Tea

Contributed Session 8: Fundamental Turbulence and Instabilities (McKee)

11:00-11:15am: "On the Physics of Turbulence Spreading" (Diamond)

11:15-11:30am: "Physics of staircases in EM turbulence -- A simple model" (Ramirez)

11:30-11:45am: "Scaling of pedestal density in the presence of the parallel velocity gradient instability" (Carter)

11:45-12:00pm: "Role of fast-ion driven global Alfvén eigenmodes in Anomalous Electron Transport in NSTX Plasmas"  (Chaubey)

12:00-12:30pm: Discussion

12:30-12:40pm: Adjourn (Wilks)