Efficient Two-Way Coupled Analysis of Steady-State Particle-Laden Hypersonic Flows

Abstract

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.

Department(s)

Mechanical and Aerospace Engineering

Comments

This work was supported by the National Science Foundation, Grant 80NSSC19K1150.

International Standard Book Number (ISBN)

978-162410635-4

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2022 American Institute of Aeronautics and Astronautics, All rights reserved.

Publication Date

01 Jan 2022

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