1. But#

Define a fluid flow velocity profile along a beam. Profiles corresponding to « typical » profiles resulting from experimental results and used in the context of a dynamic calculation taking into account fluid-elastic forces.

The speeds are calculated at the nodes for which the value of the associated curvilinear abscissa is sought in the mesh concept.

Currently, it is only possible to apply a speed profile defined by DEFI_FONC_FLUI on a structure whose meshes are of type “SEG2”. The product concept is of function type (parameter “ABSC”, curvilinear abscissa)