Rice Simulations Secured Orion Parachutes
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- NASA completed the Orion capsule splashdown on April 10, 2024, marking a milestone for the Artemis II mission.
- Rice University provided the only computational fluid‑structure interaction (FSI) analysis for Orion’s three‑parachute system, work finished in 2013 in partnership with NASA Johnson Space Center.
- Tayfun E. Tezduyar said the FSI modeling ensured the parachute generated enough drag while keeping a stable shape to avoid dangerous speed oscillations.
- Kenji Takizawa and his team used high‑fidelity simulations to pinpoint shape‑instability problems seen in scaled‑up Apollo‑era parachutes and guided a redesign that eliminated those fluctuations.
- NASA drop tests initially showed large diameter fluctuations, but after incorporating Rice’s simulations the final parachute system produced a stable descent profile for human spaceflight.
- Computational simulations reduced development costs and timelines by letting engineers evaluate designs virtually before costly, weather‑dependent drop tests.
Why it matters: NASA saved money and time by cutting costly, weather‑dependent drop tests, while astronauts gained a reliable, stable parachute system for safe re‑entry, and Rice’s breakthrough showcases university‑industry collaboration that can accelerate future deep‑space missions, potentially lowering launch‑vehicle risk and development budgets for subsequent Artemis flights.
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