Summary of results
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In the case of a pressure exchange, the solutions resulting from the models AXIS_ *HH2* * *, D_ PLAN_* HH2 *and 3D_* HH2 * are similar to the reference solutions resulting from the models AXIS, PLAN_DIAG, and 3D, respectively. The term exchange in hydraulics is therefore correctly represented. In the non-linear case of an exchange in relative humidity (or density), it is verified that the water flow found corresponds to the analytical flow.