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NASA NTRS · 20210018073

Dust Particle Aeroheating Calculations for Mars Entry Hypersonic Flows

Amal Sahai·Grant Palmer
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Abstract

The purpose of the current research effort is to predict particle trajectories in a hypersonic flowfield while accounting for all relevant particle-fluid and particle-particle interactions. The resulting particle solver is titled DUst Simulation & Tracking (DUST) and works in conjunction with the US3D CFD flow solver. The key elements underpinning the current work are an efficient mesh-localiztion algorithm, time-driven hard-sphere model, point-to-point MPI framework, coarse-graining using computational parcels, and high-order Adams-Bashforth time stepping. The coupled US3D-DUST framework will be applied to conduct a multi-physics examination of dust-laden flows around the the Mars 2020 capsule.

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Dusty FlowsLagrangian Particle Tracking

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Amal Sahai, Grant Palmer. Dust Particle Aeroheating Calculations for Mars Entry Hypersonic Flows. https://ntrs.nasa.gov/citations/20210018073

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