Code_Aster ®
Version
7.4
Titrate:
Operator LIRE_PLEXUS


Date:
19/01/05
Author (S):
S. POTAPOV, J.M. PROIX Key
:
U7.02.11-C Page
: 1/4

Organization (S): EDF-R & D/AMA

Handbook of Utilization
U7.0- booklet: Data exchanges
Document: U7.02.11

Operator LIRE_PLEXUS

1 Goal

To see the file of results to format IDEAS produced by software EUROPLEXUS.

Allows to recover a transitory field of fluid pressure in a piping calculated using one
telegraphic hydrodynamic model (plane waves) of PLEXUS. The constant field of pressure definite by
element in calculation EUROPLEXUS is projected on a mechanical grid correspondent of
Code_Aster using the elements hulls (DKT or COQUE_3D) and/or TUYAU.

Product a concept of the evol_char type.

Handbook of Utilization
U7.0- booklet: Data exchanges
HT-66/05/004/A

Code_Aster ®
Version
7.4
Titrate:
Operator LIRE_PLEXUS


Date:
19/01/05
Author (S):
S. POTAPOV, J.M. PROIX Key
:
U7.02.11-C Page
: 2/4

2 Syntax
presplex [evol_char] = LIRE_PLEXUS




(UNITE
=
/
iunit,
[I]
/
19,
[DEFAUT]
FORMAT
=
“IDEAS”,
[DEFAUT]






MAIL_PLEXUS
=
mplexus,
[MAILLAGE]






MAILLAGE
=
master, [MAILLAGE]






MODELE
=
modaster,
[MODELE]





/TOUT_ORDRE = “YES”,




/
NUME_ORDRE =
lordre, [L_I]






/
LIST_ORDRE =
lenti,
[LISTIS]




/
INST =
linst,
[L_R]






/
LIST_INST
=
linst,
[LISTR8]






| PRECISION
=
/
prec,
[R]




/
1.D-03, [DEFAUT]







| CRITERION =/“RELATIVE”, [DEFECT]




/
“ABSOLU”,






TITER
=
l_titer,
[L_KN]





)

Handbook of Utilization
U7.0- booklet: Data exchanges
HT-66/05/004/A

Code_Aster ®
Version
7.4
Titrate:
Operator LIRE_PLEXUS


Date:
19/01/05
Author (S):
S. POTAPOV, J.M. PROIX Key
:
U7.02.11-C Page
: 3/4

3 Operands

3.1 Operands
FORMAT/UNIT

FORMAT = “IDEAS”

Reading of the file to format IDEAS.

UNITE = iunit

Logical number of unit of the file to universal format IDEAS, by defect 19.

3.2 Operand
MAIL_PLEXUS

MAIL_PLEXUS = mplexus

Telegraphic hydrodynamic grid of EUROPLEXUS on which one reads the field of pressure function
time.

3.3 Operand
MAILLAGE

MAILLAGE = master

Grid for the calculation of Code_Aster on which one projects the field of pressure read.

3.4 MODEL operand

MODELE = modaster

Name of the model where are defined the types of finite elements affected on the grid of Code_Aster.

3.5 Operands
TOUT_ORDRE/NUME_ORDRE/LIST_ORDRE/INST/
LIST_INST/PRECISION/CRITERION

Selection in a structure of data result [U4.71.00].

3.6 Operand
TITER

TITER = l_titer

Titrate that one wants to give to the result [U4.03.01].
Handbook of Utilization
U7.0- booklet: Data exchanges
HT-66/05/004/A

Code_Aster ®
Version
7.4
Titrate:
Operator LIRE_PLEXUS


Date:
19/01/05
Author (S):
S. POTAPOV, J.M. PROIX Key
:
U7.02.11-C Page
: 4/4

4 Examples

4.1
Example: reading of a grid EUROPLEXUS

One reads on universal file IDEAS (logical unit 19) the telegraphic hydrodynamic grid of
EUROPLEXUS and one transform it with the format of Code_Aster written on the unit 22. Grid
EUROPLEXUS with the format of Code_Aster then is read again and placed in the concept of the type
grid.

PRE_IDEAS (UNITE_IDEAS=19, UNITE_MAILLAGE=22)
mplexus = LIRE_MAILLAGE (UNITE=22,)

4.2
Example: creation of a result of the type “evol_char”

One reads on universal file IDEAS the fluid field of pressure function of time. This field, definite
on the telegraphic hydrodynamic grid of EUROPLEXUS (with the format of Code_Aster), is then
projected on the mechanical grid of Code_Aster for every moment of definition.

presplex = LIRE_PLEXUS (UNITE

= 19,
FORMAT
=
“IDEAS”,
MAIL_PLEXUS
=
mplexus,
MAILLAGE
=
master,
MODELE
=
modaster,
TOUT_ORDRE =
“OUI”,







)

4.3
Example: use of the result of the type “evol_char”

The concept “evol_char” previously definite is used under key word PRES_CALCULEE for
to manufacture a loading.

tank = AFFE_CHAR_MECA (MODELE = modaster,

PRES_CALCULEE
= presplex,







)

Other examples of use of operator LIRE_PLEXUS can be consulted in the files
commands of the case-test ZZZZ112, modelings A, B, C [V1.01.112].

Handbook of Utilization
U7.0- booklet: Data exchanges
HT-66/05/004/A

Outline document