Operands ========= Operand RIGI_THER ------------------ .. code-block:: text ♦ RIGI_THER = rigi_ther Thermal stiffness matrix corresponding to the potential of the fluid. It is built by combining the :math:`\rho {c}_{p}` of the material assigned to the fluid model with the density of the fluid. Operand CHAM_MATER ------------------- ◊ CHAM_MATER = chmat Name of the material field assigned to the model associated with the rigi_ther matrix. Keyword factor EXCIT ---------------------- Operand CHARGE ~~~~~~~~~~~~~~~~ .. code-block:: text ♦ CHARGE = ch Thermal load corresponding to the boundary conditions on the fluid. For example in the case of a POTENTIEL = "PRES" calculation: TEMP_IMPO (TEMP =0.0) corresponds to zero pressure on this surface. Operand FONCT_MULT ~~~~~~~~~~~~~~~~~~~~~ .. code-block:: text ♦ FONC_MULT = fmult Multiplicative function or formula that modulates loading Operand POTENTIEL ------------------ .. code-block:: text ♦ POTENTIEL =/'DEPL', /'VITE', /'PRES' [DEFAUT], Choice of the type of potential desired, potential for movement, speed or a pressure field. Operand DIST_REFE ------------------ .. code-block:: text ◊ DIST_REFE = 1.E-2 [DEFAUT], Reference distance to be entered when calculating on a generalized model. This distance is an absolute geometric criterion intended to copy structural displacement values into a thermal fluid model, in order to solve the Laplace equation of the unsteady pressure field. By default, it is equal to 10—2 m. Operand MODE_MECA ------------------ .. code-block:: text ♦ MODE_MECA = fashion Modes on which fluid potential is calculated Operand COEF_MULT ~~~~~~~~~~~~~~~~~~~~ .. code-block:: text ♦ COEF_MULT = 1.0 [DEFAUT], Real coefficient allowing, possibly, to scale the potential result