High-Fidelity CFD Verification Workshop 2024: Mesh Motion

Mesh motion test cases have been part of the High-Fidelity (previously High-Order) CFD Workshops since their inception in 2012 and continue in the next iteration, the High-Fidelity CFD Verification Workshop in 2024. Activities from the most-recent workshop (2022) helped multiple groups identify bugs, and yielded significantly improved agreement between participant results compared against previous workshop iterations. The present work evolves the test suite in preparation for the 2024 workshop. Specifically, the test suite targets volume scaling, breaks problem symmetries, and proposes a study on convergence of spatial and temporal errors and their impact on long-time stability. This paper details the evolution of the test suite and serves as a reference document leading up to and after the 2024 workshop.