1. Principle of the test

The structure is 2D. It is a square composed of 2 zones \(\mathit{CARR1}\) and \(\mathit{CARR2}\).

This structure is meshed 2 times \(\mathit{MA1}\) and \(\mathit{MA2}\). The meshes are different.

On \(\mathit{MA1}\), we create a field by ELNO hydration elements (\(\mathit{CH1}\)).

On \(\mathit{CARR1}\): \(\mathit{CH1}\) is equal to \(0.8\)

On \(\mathit{CARR2}\): \(\mathit{CH1}\) is equal to \(0.2\)

We want to project \(\mathit{CH1}\) onto \(\mathit{MA2}\) to get \(\mathit{CH2}\) so that \(\mathit{CARR1}\) and \(\mathit{CARR2}\) keep the same values.

Node \(\mathit{N36}\) is on the border of mesh \(\mathit{MA2}\).

It belongs to the \(\mathit{M9}\) mesh of \(\mathit{CARR1}\)

It belongs to the \(\mathit{M10}\) mesh of \(\mathit{CARR2}\)