*SFILM
18.8 *SFILM: Define film coefficients and associated sinktemperatures over a surface for
heat transfer analysis.
Thisoption is used to provide film coefficients and sink temperatures over a surface for fully coupled thermal-
stress analysis. In ABAQUS/Standard it is also used in heat transfer and coupled thermal-electrical analyses.
Products: ABAQUS/Standard ABAQUS/Explicit
Type: History data
Level: Step
References:
•“Thermal loads,” Section 27.4.4 of the ABAQUS Analysis User’s Manual
•“FILM,” Section 1.1.6 of the ABAQUS User SubroutinesReference Manual
Optional parameters:
AMPLITUDE
Set this parameter equal to the name of the *AMPLITUDE option that gives the variationof the
sink temperature, , with time.
If this parameter is omitted in an ABAQUS/Standard ana lysis, 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 (“Procedures: overview,”
Section 6.1.1 of the ABAQUS Analysis User’s Manual). If this parameter is omitted in an
ABAQUS/Explicit analysis, the reference sink tempera ture is applied immediately at the beginning
of the step.
For nonuniform films of type FNU (which are available only in ABAQUS/Sta ndard), the
sink temperature amplitude is defined in user subroutine FILM, and AMPLITUDE references are
ignored.
FILM AMPLITUDE
Set this parameter equal to the name of the *AMPLITUDE option that gives the variationof the
film coefficient, h,withtime.
If this parameter is omitted in an ABAQUS/Standard analysis, the referencefilm coefficientis
applied immediately at the beginning of the step and kept constant over th e step, independent of the
value assigned to the AMPLITUDE parameter on the *STEP option. If t his parameter is omitted
in an ABAQUS/Explicit analysis, the reference sink temperature givenon the data lines is applied
throughout the step.
18.8–1
ABAQUS Version 6.1 Module: ID:
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