Modeling acoustic transducer surface waves by transmission line matrix method

A model for the generation and propagation of acoustic and surface waves is implemented employing the Transmission Line Matrix (TLM) method with a locally reacting surface restoring boundary condition, which is a model for an array of capacitive ultrasound transducers. First test calculations clearly show the ability of the proposed model to capture acoustic and surface wave effects. The comparisation with a reference solution derived with FE methods reveals that further refinements may be necessary although general agreement is achieved