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SFILM
18.8
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SFILM: Define film coefficients and associated sink temperatures over a surface for
heat transfer analysis.
This option is used to provide film coefficients and sink temperatures over a surface for fully coupled thermal-
stress analysis. In ABA QUS/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
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“FILM,” Section 1.1.6 of the AB AQU S User Subroutines Reference Manual
Optional parameters:
AMPLITUDE
Set this parameter equal to the nam e of the
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AMPLITUDE option that gives the variation of the
sink temperature,
, with time.
If this parameter is omitted in an ABAQUS/Standard analy sis, 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
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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 temperature 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 AM PLITUDE
Set this parameter equal to the nam e of the
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AMPLITUDE option that gives the variation of the
film coefficient, h,withtime.
If this parameter is omitted in an ABAQ US/Standard analysis, the reference film coefficient is
applied immediately at the be ginning of the step and kept constant over the ste p, independent of th e
value assigned to the AMPLITUDE parameter on the
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STEP option. If this parameter is omitted
in an ABAQUS/Explicit analysis, th e reference sink tempe rature given on the data lines is applied
throughout the step.
18.8–1
ABAQUS Version 6.1 Module:
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