Using a boundary element method to validate the concept of an active anechoic multicellular layer

Tony Nicolas

In previous paper we propose the concept of an active anechoic multicellular layer. This layer wraps the body of a submarine and the animation of this layer with an adequate algorithm makes the submarine anechoic to incidental sonar plane waves. To validate this concept we sent a plane wave to a flat square layer, then we animated this latter with the adequate algorithm described above, and deduce the conditions that made the layer anechoic. At this level, and based on the deduced conditions, we calculated the field radiated in space using the boundary finite element method. In this article, we describe the process of the calculation, the formal calculation of the singular integrals and we present the results that validate the concept of the active anechoic multicellular layer we propose.

Mots clés: boundary element method; potentiel double layer; singular integrals; formal calculation

Domaines: Acoustique [physics.class-ph]

Tony Nicolas. Using a boundary element method to validate the concept of an active anechoic multicellular layer. Acoustics 2012, Apr 2012, Nantes, France. ⟨hal-00811268⟩