Communication Dans Un Congrès Année : 2020

Outdoor blast wave propagation in real environment: statistical comparisons between simulations and measurements

Olaf Gainville

Résumé

Outdoor blast wave propagation is affected by numerous physical parameters such as the source energy, the topography, the ground nature, or the atmospheric conditions. Part of these effects are deterministic and well explained using numerical simulation. A wide angle parabolic equation code with Arome meteorological data and SRTM topography is used to model waveform signatures up to 20km for 500kg explosion. These waveform signatures are uncertain due to random nature of the media not included in the model. To quantify this uncertainty and validate the model, comparisons between simulations and measurements are performed for numerous blast wave records of well calibrated ground explosions. A metamodel of the maximum overpressure is proposed.

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Dates et versions

hal-03233752 , version 1 (26-05-2021)

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Olaf Gainville. Outdoor blast wave propagation in real environment: statistical comparisons between simulations and measurements. Forum Acusticum, Dec 2020, Lyon, France. pp.879-882, ⟨10.48465/fa.2020.0779⟩. ⟨hal-03233752⟩
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