Modelling Scattering From Partially Buried Cylinders
[Technical Report, Memorandum Report]
North Atlantic Treaty Organization
Pagination or Media Count:
A boundary integral equation method is presented for the computation of the acoustic field scattered from a cylindrical object which is totally within the water column, totally buried in sediment, or partially buried. The unknown field quantities within the cylindrical object which may have internal cylindrical layering are represented by a FourierBessel series with unknown coefficients. The pressure field and its radial derivative on the exterior of the cylinder are related to this series and a system of equations for the unknown coefficients derived. This method is used to compute the spectral curves for the backscattered field as a function of cylinder burial. Some two-dimensional full-field computations for scattering from cylindrical objects are also presented.
- Underwater Ordnance