Validation of the model

The three solvers used by dBSea are based on codes widely used and tested within the underwater acoustics industry.  They have been extensively tested against measured data and analytical solutions.  The solver input is written so as to provide accurate results covering a wide range of scenarios which are likely to be of interest to practising acoustics professionals.

Below are shown results for a range of benchmark problems. Each is shown in cross-section, with the sound source at the left edge of the image.

The wedge profile is a low frequency, shallow water problem with a sloping bottom.

Wedge dbSeamodes

The sinusoidal profile is a low frequency, shallow water problem with a sinusoidal bottom.  This problem requires solvers that are able to account for energy which enters the ocean sediment and then is later returned to the water column.

Sinusoidal dbSeaPE

 

The Munk profile is a low frequency, long range, deep water problem with a sound speed profile given by a formula with a minimum leading to a sound channel at around 1000 - 2000m depth.

  Munk dbSeaRay