1d-3d-cae
Support for Simcenter Amesim Platform features in the context of 1D/3D CFD co-simulation
| Segment | Category | Feature | Supported? | Notes |
|---|---|---|---|---|
| Platform | Simulation types | Dynamic simulation | ✓ | Co-simulation makes it possible to conduct unsteady CFD simulations with realistic boundary conditions provided by Simcenter Amesim. |
| Support for strong as well as weak coupling | ✓ | For 1D users, strong coupling is possible (using direct co-simulation), but also weak coupling (cascaded systems, static characterization, etc.) | ||
| Run parameters | Initialization | ✓ | Both software packages can carry out static runs in order to feed initial data, before starting a dynamic simulation. | |
| Continuation run | o | Must be done manually for Simcenter Amesim and CFD. Simcenter Amesim simulation can be re-started using the last values exchanged with CFD - however, the CFD package may not have kept a record of the previously generated simulation data (i.e. the previous state of its model). | ||
| Stabilizing run | - | Only possible in Simcenter Amesim, CFD does not allow stabilizing runs. | ||
| Discontinuity handling | ✓ | Each solver integrates up to a given point in time - as both solvers accept discontinuities, they are supported (but discontinuities are unusual in fluid dynamics). | ||
| 1D-3D associations | Easy meshing | ✓ | Using dedicated meshers for CFD (ANSYS ICEM, etc.) | |
| Automatic 1D-3D association | ✓ | "UserCosim" interface block - or specific GUI based on Generic Co-simulation library for STAR-CCM+ | ||
| Automatic link to CFD mesh | ✓ | Linking the CFD mesh to Simcenter Amesim variables can be done using the interface-specific code. | ||
| Results and post-processing | Access to results in 1D plots | ✓ | All CFD results exchanged at the ports of the interface are available to plot inSimcenter Amesim (including 1D variables: velocity, pressures, etc.). In addition, all Simcenter Amesim variables can be plotted in Simcenter Amesim. | |
| Access to CFD results in 3D scene | ✓ | CFD software packages natively support 3D representation of results. | ||
| Color maps/contour plots | ✓ | See above - also true for 2D representations. | ||
| Analysis tools | Linear analysis Performance analyzer Spectral analysis etc. | ✓ | Only available on the Simcenter Amesim side. |
Source: https://docs.sw.siemens.com/en-US/doc/254352342/PL20250521841123434.amesim_collection.CFD_Methodology/xid1178825 · retrieved 2026-07-17