ProductsAbaqus/StandardAbaqus/Explicit
TypeHistory data
LevelStep
Optional parameters
- AMPLITUDE
-
Set this parameter equal to the name of the
AMPLITUDE option that gives the variation of the sink temperature,
,
with time.
If this parameter is omitted in an
Abaqus/Standard
analysis, the reference sink temperature is applied immediately at the
beginning of the step or linearly over the step, depending on the value
assigned to the AMPLITUDE parameter on the
STEP option (Defining an Analysis).
If this parameter is omitted in an
Abaqus/Explicit
analysis, the reference sink temperature is applied immediately at the
beginning of the step.
For nonuniform films of type FNU (which are available only in
Abaqus/Standard),
the sink temperature amplitude is defined in user subroutine
FILM, and AMPLITUDE references are used only to modify the sink temperature passed
into the user subroutine.
- FILM AMPLITUDE
-
This parameter applies only to
Abaqus/Standard
and
Abaqus/Explicit
analyses.
Set this parameter equal to the name of the
AMPLITUDE option that gives the variation of the film coefficient,
h, with time.
If this parameter is omitted in an
Abaqus/Standard
analysis, the reference film coefficient is applied immediately at the
beginning of the step and kept constant over the step, independent of the value
assigned to the AMPLITUDE parameter on the
STEP option. If this parameter is omitted in an
Abaqus/Explicit
analysis, the reference sink temperature given on the data lines is applied
throughout the step.
The FILM AMPLITUDE parameter is ignored if a film coefficient is defined to be a
function of temperature and field variables using the
FILM PROPERTY option.
For nonuniform films of type FNU (which are available only in
Abaqus/Standard),
the film coefficient amplitude is defined in user subroutine
FILM, and FILM AMPLITUDE references are used only to modify the film coefficient passed
into the user subroutine.
- OP
-
Set OP=MOD (default) to modify existing films or to define additional
films.
Set OP=NEW if all existing
SFILMs applied to the model should be removed.
Data lines to define
sink temperatures and film coefficients
- First line
-
Surface name.
-
Film type label F or FNU.
-
Reference sink temperature value, .
(Units of .)
For nonuniform film coefficients the sink temperature must be defined in user
subroutine
FILM. If given, this value will be modified by the AMPLITUDE reference and passed into the user subroutine.
-
Reference film coefficient value, h (units of
JT−1L−2−1),
or name of the film property table defined with the
FILM PROPERTY option. Nonuniform film coefficients must be defined in
user subroutine
FILM. If given, this value will be modified by the FILM AMPLITUDE reference and passed into the user subroutine.
Repeat this data line as
often as necessary to define film conditions for different
surfaces.