FMU Co-simulation Using Ansys System Coupling

Ansys System Coupling (SyC) is a software for solving multiphysics problems that facilitates all aspects of a cosimulation analysis between different physics solvers including communication of data between the solvers and mapping of data on shared cosimulation regions. SyC has a strong track record of cosimulation with several Ansys solvers including Maxwell, CFX, Fluent, and MAPDL among others. With a goal of expanding support to more solvers and cosimulation workflows, SyC continues to emphasize collaboration via APIs, PyAnsys, and other industry standard technologies. Towards that goal, SyC plans to release full support for Function Mockup Units (FMUs) following the FMI 2.0 standard in 2024R1. The FMI standard is an open framework for data transfer and cosimulation supported by 100s of companies. It provides an interface for transfer of scalar data via a common API. This contrasts with the traditional solvers used with SyC which transfer data for an entire field (nodal or elemental data on a mesh or point cloud). SyC supports the full suite of capabilities available to other solvers including mapping to other FMUs as well as non-FMU solvers, expressions (using a Python syntax), vectors, parameters (also planned for release in 2024R1), charting, restarts, and time stepping. Introduction of full FMU support enables cosimulation between any solver that connects to SyC and the broad ecosystem of FMUs available in industry. We will highlight the new features using several sample cases: an FMU-to-FMU cosimulation case modeled on a test case provided by the FMI standard and an FMU-to-solver cosimulation case that includes coupling of FMU parameters to both solver parameters and to solver field data.