But
===

Create a constant function parameterized by the curvilinear abscissa. This function gives the value of the added mass coefficient for a configuration of the "bundle of tubes under transverse flow" type.

This function is used downstream by the operator DEFI_MATERIAU [:ref:`U4.43.01 <U4.43.01>`], keyword factor ELAS_FLUI. Produces a function-like concept.