Generation and Adaptive Control of Grids for High-Speed Reacting Flows

This project will develop and demonstrate a new generation of technologies for the creation and adaptive control of grids used in the simulation of high-speed reacting flows. The technologies to be developed will take advantage of the existing and developing Simmetrix simulation automation technologies including generalized model definitions, automatic and adaptive mesh generators, and generalized technologies to deal with tensor fields. Key technical innovations to be carried out in this project will include: Fully automatic mesh generation components that emphasize the creation of mixed topology, anisotropic grids that are easily aligned with the desired flow features. Mesh adaptation procedures that respect fully anisotropic mesh metric fields over the flow domain that are also capable of adaptively identifying and resolving, through the use of properly aligned mixed meshes, flow features anywhere in the domain. A general set of tools to deal with the interactions of meshes and solution fields that can account for key constraints as needed to support integrated vehicle simulations. These innovations will be demonstrated on various multi-speed complex flow problems of direct interest to the Air Force.