Tutorial: Convergence Study

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Overview

This tutorial will demonstrate how to verify simulation accuracy via convergence studies:

1. Baseline simulation — coarse mesh at the CFL limit
2. Mesh refinement — progressive halving of cell size
3. Metric tracking — resonant frequency, S-parameter, and field convergence
4. Convergence criterion — when results stabilise within a tolerance

See Non-Uniform Mesh for graded profiles and Validation for the cross-simulator benchmark suite.