Inhalt

•  
   Introduction -- Nuclear Fusion
•  
  Fusion Reactions
•  
   Astrophysical Fusion Processes
•  
   Power Plants: Deuterium and Tritium
•  
   Magnetic Confinement Research
•  
   Tokamak and Stellarator
•  
   Fusion Experiments
•  
  The Need for an Emission-Free Energy Source
•  
   The Global Energy Situation
•  
   Environmental and Safety Aspects of Fusion
•  
   Simulation of Fusion Plasmas
•  
   Thesis Outline
•  
  Gyrokinetics and the GENE Code
•  
   Gyrokinetic Theory
•  
   Lagrangian and One-Form
•  
   Lie Transform
•  
   The Gyrokinetic Vlasov Equation
•  
   The Gyrokinetic Field Equations
•  
   Flux Tube Geometry
•  
   General Geometry
•  
   s-alpha Flux Tubes
•  
  The GENE Code
•  
   Normalization of the Equations
•  
   Time Stepping Schemes
•  
   Coordinates and Parallelization
•  
   The Eigenvalue Solver
•  
   Chapter Summary
•  
  Visualization of Simulation Results
•  
   The GENE Diagnostics Tool
•  
   Structure of the Diagnostics Tool
•  
   Built-in Diagnostics
•  
   Additional Diagnostics
•  
  The RZG VisualKit
•  
   Technology
•  
   GENE Data Sets
•  
   Limitations and Further Requirements
•  
   Chapter Summary
•  
  Numerical Diffusion in GENE
•  
  Finite Difference Schemes
•  
   Centered and Upwind First Derivatives
•  
   Higher Derivatives
•  
  Parallel Dissipation
•  
   A Simplified Model
•  
   Occurrence of High-k-parallel Modes
•  
   The Impact of Upwind Schemes and Diffusion Terms
•  
  Recurrence Phenomena
•  
   Decaying Zonal Flows
•  
   Velocity Space Diffusion
•  
  Treatment of Parallelly Extended Modes
•  
   The Extended Ballooning Representation
•  
   Radial Diffusion Term
•  
  An Application: the ETG Benchmark
•  
   Benchmark Parameters
•  
   Impact of the Parallel Diffusion Term
•  
   Chapter Summary
•  
  Electromagnetic Cyclone Base Case
•  
  The Normalized Plasma Pressure Beta
•  
   Definition and Significance
•  
   Experimental Findings
•  
   The Cyclone Base Case
•  
   Physical Parameter Set
•  
   The ITM Benchmark Effort
•  
   Previous Electromagnetic Work
•  
   Code-Code Comparisons
•  
  Linear Results
•  
   Numerical Settings
•  
   A Linear Beta Scan
•  
   Properties of the Kinetic Ballooning Mode
•  
   Mode Transformations and Exceptional Points
•  
   Nonlinear Beta Scan
•  
   Turbulence Regimes
•  
   Transport Levels
•  
   Chapter Summary
•  
  Electromagnetic TEM Turbulence
•  
   The Parameter Set
•  
  Linear Behavior
•  
   Linear Beta Scan
•  
   The KBM Threshold
•  
  Nonlinear Results
•  
   Nonlinear Beta Scan
•  
   Transport Levels
•  
   Chapter Summary
•  
  Properties of Magnetic Turbulence
•  
   A Model for the Magnetic Transport
•  
   The Rechester-Rosenbluth Model
•  
   Phase Relations and Beta Scaling
•  
   Application to CBC Simulations
•  
   Modeling Magnetic TEM Transport
•  
   Field Line Fluctuations
•  
  Fast Ions in Turbulent Electromagnetic Fields
•  
   Background
•  
   Passive Fast Ion Simulations
•  
   Effects of Realistic Geometry
•  
   Modeling a JET Discharge
•  
   Transport Levels
•  
   Dimits Shift
•  
   Chapter Summary
•  
  Application to Astrophysical Scenarios
•  
   Gyrokinetics on Astrophysical Scales
•  
  Galactic Cooling Flows
•  
   Motivation and Previous Investigations
•  
   Applying GENE Results to Cooling Flows
•  
  Evaporating Clouds
•  
   General Picture and Previous Work
•  
   Application of GENE Data
•  
   Chapter Summary
•  
  Conclusions
•  
   Summary
•  
   Future Investigations
•  
   Acknowledgments
•  
   Bibliography