Abstract
A hybrid coupled wave-number integration model and a time domain finite difference (TDFD) model have been used to predict propagation of low-frequency (below 500 Hz) acoustic pulses above ground with a hill present. The former model is also applied to study propagation along an upward slope. Ground conditions are described by poroelastic and viscoelastic theory. Air–ground interactions as well as the effect of important parameters such as permeability and thickness of poroelastic layers are discussed. Results are also compared with data from full-scale experiments.
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