Susumu Hasegawa

DOI Number: N/A

Conference number: HiSST-2025-040

The Japan Aerospace Exploration Agency (JAXA) conducted a hypersonic combustion flight test to resolve the wind tunnel dependency. The test vehicle was launched by the S-520 small rocket into a ballistic flight orbit, and the combustion experiment was conducted when it reached Mach number during the descent. The JAXA RD1 flight test vehicle was launched by the S-520 rocket from JAXA Uchinoura Space. On July 24, 2022, the flight test was successfully conducted and flight experiment data was collected. Based on the ADS data evaluated by CFD, this study attempted to improve the prediction of dynamic pressure using linear weight analysis and statistical machine learning algorithms. As a result, it was found that the results were more promising than the dynamic pressure estimation formulation initially used. In particular, xgboost provides the closest estimate to the theoretical values.

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In Categories: 1.Events, 1.HiSST 2025, Testing & Evaluation
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