A GENERIC FINITE-VOLUME SOLVER FOR MULTIPHYSICS PROBLEMS Ⅱ: INTERFACE COUPLING

摘要

A framework allowing interface coupling in a generic finite-volume solver has been introduced. The frame- work allows virtually any type of interaction between physical phenomena in separate subdomains. The data is exchanged through the use of boundary conditions. A sample problem, where a passive scalar gets convected from a subdomain to another, has been simulated and the framework has been shown to be effective. Now that a proof of concept is in place, more challenging and relevant multiphysics problems, such as the conjugate heat transfer problem mentioned in this text, will be investigated. Future challenges include incorporating interface coupling with an implicit time-advance scheme. Interface coupling can possibly lead to circular dependencies, where data on either side of the interface depend on each other and are both needed at the same time. Solving these dependencies will likely require some modifications to the internal treatment of interface couplings.