High-order preserving sliding-mesh techniques for Turbomachinery

The proposals included in this work deal with sliding mesh techniques for the computation of flows/acoustic waves in the presence of rotating parts. Two families of high-order sliding mesh interfaces are proposed. In order to achieve real-life applications caracterized by their complex geometries, these approachs are developed on unstructured grid. For that purpose, these techniques, which fit naturally in a high-order finite volume framework, are based on the Moving Least Squares (MLS) approximants. In this communication, we focuse on the accuracy, the conservation and the stability domain of these numerical schemes by using the acoustic pulse problem.