Code_Aster ®
Version
7.4
Titrate:
Operator FONC_FLUI_STRU


Date:
27/01/05
Author (S):
A. Key ADOBES
:
U4.35.02-E Page
: 1/4

Organization (S): EDF-R & D/MFTT
Handbook of Utilization
U4.3- booklet: Function
Document: U4.35.02
Operator FONC_FLUI_STRU

1 Goal

To create a constant function parameterized by the curvilinear X-coordinate. This function gives the value of
coefficient of mass added for a configuration of the type “beam of tubes under flow
transverse ".

This function is used downstream by operator DEFI_MATERIAU [U4.43.01], key word factor
ELAS_FLUI. Product a concept of the function type.
Handbook of Utilization
U4.3- booklet: Function HT-66/05/004/A

Code_Aster ®
Version
7.4
Titrate:
Operator FONC_FLUI_STRU


Date:
27/01/05
Author (S):
A. Key ADOBES
:
U4.35.02-E Page
: 2/4

2 Syntax

fonc_cm
[function] = FONC_FLUI_STRU
(




TYPE_FLUI_STRU = typeflui
,

[type_flui_stru]












);
Handbook of Utilization
U4.3- booklet: Function HT-66/05/004/A

Code_Aster ®
Version
7.4
Titrate:
Operator FONC_FLUI_STRU


Date:
27/01/05
Author (S):
A. Key ADOBES
:
U4.35.02-E Page
: 3/4

3 Operands

3.1 Key word
TYPE_FLUI_STRU

TYPE_FLUI_STRU = typeflui

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

Note:

The Cm value can be imposed via key word COEF_MASS_AJOU
appearing in command DEFI_FLUI_STRU. If the coupling fluidelastic is taken in
count, the coefficient of added mass can be calculated by the operator according to
other characteristics of the beam.

Operator FONC_FLUI_STRU creates a concept of the type [function] which is then
directly usable by DEFI_MATERIAU [U4.43.01], key word ELAS_FLUI.

The function constant, is parameterized by the curvilinear X-coordinate, and gives the Cm value.
The combined use of operators FONC_FLUI_STRU then DEFI_MATERIAU option
ELAS_FLUI is necessary when one studies a configuration of the type “beam of tubes
under transverse flow ", and it is allowed only for this type of configurations.

Handbook of Utilization
U4.3- booklet: Function HT-66/05/004/A

Code_Aster ®
Version
7.4
Titrate:
Operator FONC_FLUI_STRU


Date:
27/01/05
Author (S):
A. Key ADOBES
:
U4.35.02-E Page
: 4/4

Intentionally white left page.
Handbook of Utilization
U4.3- booklet: Function HT-66/05/004/A

Outline document