2. Benchmark solution

2.1. Calculation method used for the reference solution

For field \(\mathit{ch1}\), calculated on mesh \(\mathit{ma1}\), the reference solution is obtained with Code_Aster (version 5.02.07).

For field \(\mathit{ch1bis}\) obtained by a « round-trip » projection (\(\mathit{ma1}\to \mathit{ma2}\to \mathit{ma1}\)), the reference solution is field \(\mathit{ch1}\).

We thus measure the error due to the 2 successive field projections: \(\mathit{ch1}\to \mathit{ch2}\to \mathit{ch1bis}\)