Operands
=========


Keyword TYPE_FLUI_STRU
----------------------


.. code-block:: text

    ♦ TYPE_FLUI_STRU = typeflui

[type_flui_stru] concept produced by the operator DEFI_FLUI_STRU [U4.25.01], providing the value of the added mass coefficient Cm.

**Notes:**

*The value of Cm can be imposed using the COEF_MASS_AJOU keyword appearing in the DEFI_FLUI_STRU command. If fluidelastic coupling is taken into account, the added mass coefficient can be calculated by the operator as a function of the other characteristics of the beam.*

*The operator FONC_FLUI_STRU* creates a concept of type [function] *which is then directly usable by DEFI_MATERIAU* [U4.43.01], keyword ELAS_FLUI *.*

*The function is constant, parameterized by the curvilinear abscissa, and gives the value of Cm.*

*The combined use of operators FONC_FLUI_STRU then DEFI_MATERIAU option ELAS_FLUI is necessary when studying a "cross-flow pipe bundle" configuration, and it is only allowed for this type of configuration.*