Macro-micro coupling with DuMux and preCICE

Abstract

In this work, we present the implementation of a two-scale heat conduction problem in porous media simulation software DuMux , where macro and micro simulations are coupled using the coupling library preCICE, as well as its DuMux adapter and micro manager. We show that multiscale coupled simulations can generally be realised using these software components, and provide a tutorial case for future users. As the same example problem has an existing Nutils implementation, we also compare the results of the various combinations of Nutils and DuMux macro and micro simulations with each other.