Replication dataset for: Large-Scale Hydrogen Explosion Experiments: Obstructed Releases in open atmosphere

This dataset includes results from large-scale hydrogen explosion experiments conducted in open atmospheric conditions during the 2024 and 2025 campaigns. The tests simulate delayed ignitions of high-pressure hydrogen jets, with variations in nozzle diameter, obstacle distance, and ignition location. Data from both obstructed and unobstructed releases are included, with recordings from high-speed cameras and high-frequency pressure sensors. Key findings address the impact of flow rates, obstacle placement, and ignition positioning on flame acceleration, overpressure, and explosion severity. The dataset serves as a critical resource for understanding hydrogen explosion behavior and improving safety designs.