User manual

Dymola 2015 FD01 Release Notes 41
Improved import of FMUs with many inputs/outputs
The import of FMUs with many inputs/outputs has been further improved; now the
connectors of the same parent component are automatically stacked when imported, if there
are 10 (default) or more connectors.
This number can be changed by changing the value of the flag
Advanced.FMI.OverlappingIOThreshold
The default value of the flag is 10.
The connection of stacked connectors has also been improved, see section “Extended
connection dialog” on page 9.
64-bit export/import of FMUs on Linux
Dymola 2015 FD01 supports 64-bit export and import of FMUs on Linux.
Note that for the 64-bit version of Dymola, it is required to set the flag
Advanced.CompileWith64=2 when compiling applications (dymosim.exe) that contains
imported 64-bit FMUs.
Importing Simulink models using FMI
The package for Simulink FMU export that can be used together with the Dymola support
for FMU import to facilitate simulation of Simulink models in Dymola only supports FMI
version 1.0.
The package does currently not support FMI version 2.0, and the package may be removed
in some future version of Dymola.
3.6 Updated libraries
Below is a short description of updated libraries. For a full description, please refer to the
libraries documentation.
3.6.1 Air Conditioning Library
A new version 1.9 of the Air Conditioning Library is available. Some improvements:
• Improved robustness for the refrigerant CO2 (R744) at the critical point.
• A refrigerant flow source (Reservoirs.FlowSourceCharge) is introduced as an optional
component in the liquid receiver model. This makes it more convenient to reach
steady-state operating points in charge experiments, since the additional refrigerant is
usually stored there and does not have to travel through the system.
• Chens correlation for evaporative heat transfer is added. It is not dependent on the heat
flux and therefore avoids this iterative loop in the non-linear equation systems. On the
other hand it is known to be a little less accurate than other correlations