/IMPL/DYNA/FSI
Engine Keyword Defines the settings for Fluid Structure Interaction Analysis with AcuSolve.
Format
/IMPL/DYNA/FSI
ESET SSET PORT FTOL DTOLTTOL FXTOLMINEX MAXEX TAG DATA MSG WAIT INIT
Definitions
Data | Description | SI Unit Example |
---|---|---|
ESET | /GRSHEL/SHEL/,
/GRSH3N/SH3N/ or
/GRBEAM/BEAM/ID of the damp surface
elements. These can be shell or beam elements. For solid element
surfaces, coat the damp surface with SHEL or
SH3N elements with material defined by
/MAT/LAW0. Note: Both
ESET and SSET can
be used to define the damp surface. ESET
must be used if the damp surface contains beam
elements.
Integer > 0, or 0 for no ESET |
|
SSET | /SURF/
surf_ID of the damp
surface. Note: Both ESET and
SSET can be used to define the damp
surface. ESET must be used if the damp
surface is beam elements.
Integer > 0, or 0 for no SSET |
|
PORT | Port number for
communication with AcuSolve. Must be
the same as the EXTERNAL_CODE
socket_port setting in the AcuSolve input data.Default = 10000 (Integer > 0, or 0 for default) |
|
FTOL | Tolerance for exchange
convergence of Forces. Default = 0.005 (Real > 0.0, or 0 for default) |
|
DTOL | Tolerance for exchange
convergence of Displacements. Default = 0.0001 (Real > 0.0, or 0 for default) |
|
TTOL | Tolerance for exchange
convergence of Temperatures (For future use). 5 Default = 0.005 (Real > 0.0, or 0 for default) |
|
FXTOL | Tolerance for exchange
convergence of Heat-Fluxes (For future use). 5 Default = 0.0001 (Real > 0.0, or 0 for default) |
|
MINEX | Minimum number of
exchanges between Radioss and
AcuSolve per time step. This
should be the same as AUTO_SOLUTION_STRATEGY
min_stagger_iterations in the AcuSolve input data.Default = 1 (Integer > 0, or 0 for default) |
|
MAXEX | Maximum number of
exchanges between Radioss and
AcuSolve per time step. This
should be the same as AUTO_SOLUTION_STRATEGY
max_stagger_iterations in the AcuSolve input data.Default = 10 (Integer > 0, or 0 for default) |
|
TAG | If
USETAG is 0, then all
the damp surfaces will be tagged as "0". If
USETAG is 1, then
all the damp surfaces will be tagged with the PART
ID. Each PART ID must match
the TAG ID specified by the
Default = 0 (Integer = 0 or 1, or 0 for default) |
|
DATA | Determines the data to
be exchanged between Radioss and
AcuSolve.
Integer = 1 or 2, or 0 for default (3, 4 and 5 for future use) |
|
MSG |
(3 ≥ Integer ≥ 0) |
|
WAIT | Defines the wait time,
in seconds, for AcuSolve to be
started after Radioss is
started. Default = 3600 (Integer > 0, or 0 for default) |
|
INIT | Initial AcuSolve time increment to start the
coupling with Radioss. Default = 0 (Integer > 0) |
Comments
- Only a single /IMPL/DYNA/FSI data can be in the Engine file.
- Beam elements cannot be combined with 2D or solid surface damp surfaces.
- The first line of data is required to specify either ESET or SSET.
- The second line of data with the convergence tolerances is optional.
- TTOL and FXTOL are not used at this time.