FreeFlow software is a dynamic program with a code base that is continually being improved upon to better serve the needs of our customers. As such, there may be some features included in this version that are not fully developed or verified. These features are provided as a working example of future capabilities but there are limits to their practical usage as described in this section.
The below matrices communicate the program limitations of major features GPU processing (Table 1), as well as feature compatibility (Tables 2 and 3).
To learn more about what feature limitations might be due to your license type, or for further information regarding the known limitations of other specific FreeFlow software features and capabilities, see the additional topics listed below.
The below list defines the various limitations and restrictions for setting Physics components in FreeFlow software.
The below list defines the various limitations and restrictions for setting Geometry components in FreeFlow software.
Geometries cannot have duplicate names. (I.e., two different geometry components cannot have the same name.)
Imported geometries with Motion Frames assigned have all of the following limitations:
A Motion Frame with a Free Body Translation or Free Body Rotation motion(s) must be assigned to an imported geometry; having a Motion Frame with a Free Body motion but no geometry assigned to it is not supported.
For any given Motion Frame, the time intervals for two or more of the same kind of Free Body motions (Translation or Rotation) that share common directions (X and XY, for example) cannot overlap. This means that a Free Body Translation motion in the X direction cannot occur at the same time as a second Free Body Translation motion in the XY direction, but can occur at the same time as Free Body Rotation motion, or at the same time as a Free Body Translation motion on a different axis (Y, for example).
Note: Note: The time intervals are open at the end. For example, the intervals (0s, 10s) and (9s, 20s) overlap but the intervals (0s, 10s) and (10s, 20s) do not overlap because the second motion starts at exactly the stop time of the first.
Imported geometries with Geometry Replication enabled must have a Motion Frame assigned with at least one of the following motions: Translation, Rotation, Periodic Translation (Vibration), or Periodic Rotation (Pendulum). (This means that geometry replication features are not compatible with free body motions.)
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The below list defines the various limitations and restrictions for setting Materials.
(Recommendation) Solid Materials should have a Poisson ratio in the recommended range (0.0 to 0.5).
Every entity that has solid materials (conveyors, geometries, and particles) must have a Solid Material set.
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The below list defines the limitations and restrictions for setting a fluid flow simulation using the SPH functionality in FreeFlow software.
GENERAL LIMITATIONS FOR SPH SIMULATIONS IN FreeFlow software
Only one phase of SPH elements is supported per simulation.
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The below list defines the various limitations and restrictions for displaying FreeFlow software and processing your simulations.
If the detected OpenGL version is older than 2.1, 3D rendering will be slow. This can happen, for instance, when accessing FreeFlow software via Remote Desktop connections.
GPU simulations require a CUDA-enabled GPU.
If you stopped a simulation that was in the middle of processing and later want to resume processing it using a newer version of FreeFlow software, you may only resume if the simulation was last processed in the same major version of the product as the version you are using now.
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