Consistent Continuum-Particle Modeling of Hypersonic Flows
Abstract
University of Minnesota Grant #: FA9453-15-1-0071 “Consistent Continuum-Particle Modeling of Hypersonic Flows” Abstract Space vehicles re-entering the atmosphere generate flow conditions that range from highly rarefied to fully continuum. However, even within a continuum flow, there may exist regions of flow that are locally rarefied leading to strong non-equilibrium. These local areas of non-equilibrium are generated around sharp leading edges, within shock waves, wake regions, and boundary layers or are exhibited in rocket plumes in space. For accurate simulation of such flows, a hybrid CFD-DSMC technique is required. While great strides have been made into developing a robust hybrid method, further work is necessary before a single hybrid hypersonic tool capable of 3D, parallel simulations, employing high fidelity chemistry models can be completed. In particular, two advancements are necessary; the hybrid method must be extended to fully 3D complex geometries with scalable parallel performance, and chemistry models must be made physically consistent between the CFD and DSMC components. The current proposal focuses mainly on the second advancement, demonstrating full consistency between CFD and DSMC solutions for chemically reacting flows in the near-continuum regime. This abstract is publicly releasable.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jul 15, 2016
- Source ID
- FA94531510071
Entities
People
- Thomas Schwartzentruber
Organizations
- Air Force Research Laboratory
- United States Air Force
- University of Minnesota