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SONAR & Ultrasound

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Sonar Listens to Material PropertiesSonar Listens to Material Properties

NATO Undersea Research Centre in La Spezia, Italy
With the help of multiphysics modeling, a group of researchers at the NATO Undersea Research Centre in La Spezia, Italy, are studying how to use low-frequency...

Example Models

Acoustic-Structure InteractionAcoustic-Structure Interaction

Liquid or gas acoustics coupled to structural objects such as membranes, plates or solids are important applications in many engineering fields. This model is a general demonstration of an acoustic fluid phenomenon in 3D that is...

Hollow CylinderHollow Cylinder

Fluid acoustics coupled to structural objects, such as membranes or plates, represents an important application area in many engineering fields. Some examples are: • Loudspeakers • Acoustic sensors • Nondestructive impedance...

Piezo-Acoustic TransducerPiezo-Acoustic Transducer

A piezoelectric transducer can be used either to transform an electric current to an acoustic pressure field or, the opposite, to produce an electric current from an acoustic field. These devices are generally useful for applications that...

Ultrasound Scattering Off a CylinderUltrasound Scattering Off a Cylinder

This 2D model studies the scattering of ultrasound waves off a cylindrical obstacle with different acoustic properties than those of the surrounding medium. The ultraweak variational formulation (UVWF) makes it possible to resolve the...