OpenFOAM provides a rich arsenal of single-physics solvers, while other software projects also offer a wide range of solvers for structural dynamics or heat transfer. Moreover, packages for special applications, such as nuclear reactor safety, hemodynamics, or flood simulations need to integrate 3D flow phenomena into their workflow, which is often built around 1D or 2D models. The coupling library preCICE for partitioned multi-physics simulations can bring together different solvers, in a minimally invasive way. It allows them to communicate via MPI ports or TCP/IP sockets, it maps the boundary values using advanced methods such as RBF, and it couples them with Interface Quasi-Newton algorithms that accelerate the convergence. Its API is being used in a variety of well-known or in-house solvers, while official, user-ready adapters are provided for open-source packages such as OpenFOAM. The official OpenFOAM adapter supports conjugate heat transfer and fluid-structure interaction out-of-the box, while it was recently extended to also support fluid-fluid coupling. This talk will present the current status of the coupling library preCICE and its OpenFOAM adapter to the OpenFOAM community, and it will discuss our current research into fluid-fluid coupling and geometric multiscale coupling.     «

OpenFOAM provides a rich arsenal of single-physics solvers, while other software projects also offer a wide range of solvers for structural dynamics or heat transfer. Moreover, packages for special applications, such as nuclear reactor safety, hemodynamics, or flood simulations need to integrate 3D flow phenomena into their workflow, which is often built around 1D or 2D models. The coupling library preCICE for partitioned multi-physics simulations can bring together different solvers, in a mini...     »