Discussion Overview
The discussion revolves around an error encountered in MCNP5 related to a "zero lattice element hit" when attempting to run a hexagonal lattice input file. Participants explore the implications of this error, particularly in the context of lattice configurations and their arrangement within a cylindrical geometry.
Discussion Character
- Technical explanation
- Debate/contested
Main Points Raised
- One participant describes encountering a "zero lattice element hit" error specifically with a hexagonal lattice, while a square lattice runs without issues.
- Another participant explains that a "zero lattice" indicates that certain areas of the lattice are unfilled, suggesting solutions such as extending the lattice or filling empty wedges with additional materials.
- A participant expresses gratitude for the assistance and mentions the challenge of limiting the hexagonal lattice to a 7x7 configuration within a circular cluster surface, considering adjustments to the dimensions.
- Another participant questions the inclusion of fractional pins in the lattice, noting that a typical fuel array would consist of complete pins and expressing curiosity about the rationale behind the current configuration.
Areas of Agreement / Disagreement
Participants present various viewpoints and suggestions regarding the error and lattice configuration, indicating that multiple competing views remain without a clear consensus on the best approach to resolve the issue.
Contextual Notes
Participants discuss the need for adjustments in the lattice dimensions and configurations, but specific assumptions or dependencies on definitions are not fully explored. The discussion does not resolve the mathematical or technical steps needed to address the error.
