Efficient Two-Way Coupled Analysis of Steady-State Particle-Laden Hypersonic Flows
A previously developed direct solution approach for surface erosion in particle-laden hypersonic flows is extended for use in low-cost two-way coupled solutions of dilute gas-particle flows. The Trajectory Control Volume (TCV) method, which uses a sparse set of probe particles to predict surface erosion distributions on general vehicles, is reformulated for the solution of source terms by subdividing TCVs along their mean trajectory and computing a flux difference through the sub volumes. The approach is verified successfully against a boundary layer solution and shown to agree well with experimental measurements. A representative Mars entry case, with conditions and geometry based on the ExoMars Schiaparelli capsule, is solved with the approach to study the impact of two-way coupling on surface heating and erosion. Results indicate that for realistic loading conditions, heating is largely unmodified compared to one-way coupled results at peak heating trajectory conditions, and no measureable difference is observed in the surface erosion rate. At increased loading conditions, collisional heating produces a significant overall heating increase.
A. Hinkle et al., "Efficient Two-Way Coupled Analysis of Steady-State Particle-Laden Hypersonic Flows," AIAA AVIATION 2022 Forum, article no. AIAA 2022-3950, Aerospace Research Central (ARC), Jan 2022.
The definitive version is available at https://doi.org/10.2514/6.2022-3950
Mechanical and Aerospace Engineering
International Standard Book Number (ISBN)
Article - Conference proceedings
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01 Jan 2022
National Science Foundation, Grant 80NSSC19K1150