Details

Autor(en) / Beteiligte

• Thorsos, EI
• Jackson, DR
• Williams, KL

Titel

Modeling of subcritical penetration into sediments due to interface roughness

Ist Teil von

• The Journal of the Acoustical Society of America, 2000-01, Vol.107 (1), p.263-277

Ort / Verlag

United States

Erscheinungsjahr

2000

Quelle

American Institute of Physics (AIP) Journals

Beschreibungen/Notizen

• Recent experimental results reveal acoustic penetration into sandy sediments at grazing angles below the critical angle. A mechanism for this subcritical penetration is described based on scattering at a rough water-sediment interface. Using perturbation theory, a numerically tractable three-dimensional model is used for simulating experiments. The rough interface scattering has been treated using formally averaged methods as well as with single rough surface realizations. Data-model comparisons show that scattering by interface roughness is a viable hypothesis for the observed subcritical penetration.