5.3. Acceleration

Acceleration tutorials introduce low-order corrections that reduce slowly converging transport error modes. Each example compares the accelerated solution with a baseline solve so the effect on convergence is separated from the final physical result.

• 5.3.1. TGDSA: Two-Grid Diffusion Synthetic Acceleration
• 5.3.2. WGDSA and TGDSA in a Multigroup Source-Detector Problem
• 5.3.3. DSA Options on Regular Grids: Boundary Closure and Penalty Length
• 5.3.4. DSA on Distorted Meshes: Why the Penalty Length Is Capped
• 5.3.5. SCDSA: Spatially Consistent Diffusion Synthetic Acceleration
• 5.3.6. CMFD: Coarse Mesh Finite-Difference Acceleration
• 5.3.7. SMM: Second-Moment Method Acceleration