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physics.plasm-ph2025
Detecting Shearless Phase-Space Transport Barriers in Global Gyrokinetic Turbulence Simulations with Test Particle Map Models
Norman M. Cao, Hongxuan Zhu, Gabriel C. Grime +1
In magnetically confined fusion plasmas, the role played by zonal EB flow shear layers in the suppression of turbulent transport is relatively well-understood. However, les…
physics.plasm-ph2025
Global linear drift-wave eigenmode structures on flux surfaces in stellarators: ion temperature gradient mode
Hongxuan Zhu, H. Chen, Z. Lin +1
Turbulent transport greatly impacts the performance of stellarator magnetic confinement devices. While significant progress has been made on the numerical front, theoretical unders…
physics.plasm-ph2025
Geometry effects on zonal flow dynamics and turbulent transport in optimized stellarators
Haotian Chen, Xishuo Wei, Hongxuan Zhu +1
Global gyrokinetic simulations find a strong suppression of ion temperature gradient (ITG) turbulence by zonal flows in stellarators optimized for neoclassical transport. The reduc…