Provides information about the coupled solution and its execution.
Figure 49: Coupled Solution section header
=============================================================================== +=============================================================================+ | | | Coupled Solution | | | +=============================================================================+ ===============================================================================
Coupled Solution contents:
Provides information for each coupling step, including the simulation time and details for each coupling step completed. Within the coupling step, the following information is provided, with participants ordered according to update sequence:
Note that the coupling step's SIMULATION TIME is provided for transient analyses.
Figure 50: Coupling Step section header
+============================================================================+ | COUPLING STEP = 1 SIMULATION TIME = 1.00000E+00 [s] | +----------------------------------------------------------------------------+
Coupling Step contents:
When data is transferred from explicit to implicit solvers, it is transferred before the implicit solver begins iterating. This information is shown at the start of the coupling step section.
Each time participant meshes are mapped/remapped, System Coupling writes a MAPPING SUMMARY to the Transcript.
If mapping occurs at the beginning of a coupling step, then the summary is written to the Transcript at the beginning of the step's first iteration.
Figure 51: Mapping Summary at the Coupling Step level
-----------------------------------------------------------------------------+ | COUPLING ITERATION = 1 | +-----------------------------------------------------------------------------+ | MAPPING SUMMARY | +-----------------------------------------------------------------------------+ | | Source Target | +-----------------------------------------------------------------------------+ | Interface-1 | | | Heat Rate Density | | | Mapped Volume [%] | 100 100 | | Mapped Elements [%] | 100 100 | | Mapped Nodes [%] | 100 100 | | Temperature | | | Mapped Volume [%] | 25 100 | | Mapped Elements [%] | 14 100 | | Mapped Nodes [%] | 6 98 | | Interface-2 | | | Heat Rate Density | | | Mapped Volume [%] | 100 100 | | Mapped Elements [%] | 100 100 | | Mapped Nodes [%] | 100 100 | | Temperature | | | Mapped Volume [%] | 23 100 | | Mapped Elements [%] | 12 100 | | Mapped Nodes [%] | 6 99 | +-----------------------------------------------------------------------------+
Provides details for each coupling iteration in the step, with participants listed in order of the update sequence. For each iteration, the following information is provided:
- Participant data transfers:
A section for each participant indicates the data transfer it receives and whether the data transfer converged during the iteration.
Data transfer diagnostics:
For each data transfer, the RMS Change in transfer values reports progress toward specified convergence targets.
Note: The RMS Change diagnostic is not reported for transfers involving participant variables with complex number values.
For extensive variables (which are mapped using a conservative algorithm), the Sum reports the net sum of values leaving the source and entering the target. Diagnostics are reported per-component for vector and complex variables.
For intensive variables (which are mapped using a profile-preserving algorithm), the Weighted Average reports a weighted average of values on the source and on the target. Diagnostics are reported per-component for vector and complex variables. The averages are weighted by area for surface regions, and by volume for volume regions.
Participant ordering:
Participant data transfers, whether for individual participants or participants grouped for simultaneous solution, are ordered chronologically by participant update sequence, as shown in Figure 52: Coupling Iteration section.
Data transfers for grouped participants that are solving simultaneously are not separated by a line in the output, as shown in Figure 53: Coupling Iteration section with simultaneous-solve participants.
- Participant solution diagnostics:
Indicates whether each participant's solution converged (it solved its equations) during the iteration.
Possible values:
Converged: Used for iterative solutions. Indicates that the solution has converged during the iteration. (Not applicable to AEDT participants.)
Complete: Used for direct solutions and all AEDT solutions (that is, both iterative and direct). Indicates that the solution has been completed for the iteration.
Convergence Not Evaluated: Indicates that the participant's output was not monitored during the iteration.
Not Updated: Indicates that the solution was not updated during the iteration, as specified by the participant's UpdateControl settings, as described in the System Coupling Settings and Commands Reference manual.
Display names are used for interfaces, participants, and data transfers.
Figure 52: Coupling Iteration section
+-----------------------------------------------------------------------------+ | COUPLING ITERATION = 2 | +-----------------------------------------------------------------------------+ | MAPDL 1 | | | Interface: Interface-1 | | | Heat Rate Density | Not yet converged | | RMS Change | 1.25E+00 1.10E+00 | | Sum | -2.03E-01 -1.40E+01 | +-----------------------------------------------------------------------------+ | MAPDL 2 | | | Interface: Interface-2 | | | Heat Rate Density | Not yet converged | | RMS Change | 1.30E+00 1.28E+00 | | Sum | -3.22E-01 -1.98E+01 | +-----------------------------------------------------------------------------+ | Fluent | | | Interface: Interface-1 | | | Temperature | Not yet converged | | RMS Change | 3.80E-04 3.80E-04 | | Weighted Average | 1.02E+02 1.02E+02 | | Interface: Interface-2 | | | Temperature | Converged | | RMS Change | 8.64E-05 8.64E-05 | | Weighted Average | 1.11E+02 1.11E+02 | +-----------------------------------------------------------------------------+ | Participant solution status | | | MAPDL 1 | Converged | | MAPDL 2 | Converged | | FLUENT | Converged | +=============================================================================+
Figure 53: Coupling Iteration section with simultaneous-solve participants
+-----------------------------------------------------------------------------+ | COUPLING ITERATION = 2 | +-----------------------------------------------------------------------------+ | MAPDL 1 | | | Interface: Interface-1 | | | Heat Rate Density | Not yet converged | | RMS Change | 1.25E+00 1.10E+00 | | Sum | -2.03E-01 -1.40E+01 | | MAPDL 2 | | | Interface: Interface-2 | | | Heat Rate Density | Not yet converged | | RMS Change | 1.30E+00 1.28E+00 | | Sum | -3.22E-01 -1.98E+01 | +-----------------------------------------------------------------------------+ | Fluent | | | Interface: Interface-1 | | | Temperature | Not yet converged | | RMS Change | 3.80E-04 3.80E-04 | | Weighted Average | 1.02E+02 1.02E+02 | | Interface: Interface-2 | | | Temperature | Converged | | RMS Change | 8.64E-05 8.64E-05 | | Weighted Average | 1.11E+02 1.11E+02 | +-----------------------------------------------------------------------------+ | Participant solution status | | | MAPDL 1 | Converged | | MAPDL 2 | Converged | | FLUENT | Converged | +=============================================================================+