An efficient numerical target strength prediction model: validation against analysis solutions
conference paper
A decade ago, TNO developed RASP (Rapid Acoustic Signature Prediction), a numerical model for the prediction of the target strength of immersed underwater objects. The model is based on Kirchhoff diffraction theory. It is currently being improved to model refraction, angle dependent reflection and transmission (possibly through anisotropic materials) and multiple reflections and transmissions. These improvements are validated against available analytic solutions for simple shapes such as cylinders and spheres. Validation efforts will also be conducted against other numerical models using complex shapes such as a model submarine [in the second Benchmarking of Target Strength Simulation (BeTSSi II) workshop that will be held in September 2014]. The target strength model and a comparison of the numerical results with analytic solutions are presented. In addition, the effect and relative importance of the various improvements are evaluated.
TNO Identifier
508429
Source title
Proceedings 2nd International Conference and Exhibition on Underwater Acoustics, UA2014, 22-27 June, Rhodes, Greece
Editor(s)
Papadakis, J.S.
Bjorno, L.
Bjorno, L.
Collation
7 p.
Pages
487-493
Files
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