Internal generation of waves: Delta source function method and source term addition method

Method of Green’s Function for Characterization of SH Waves in Porous-Piezo Composite Structure with a Point Source

An approach of Green’s function is adopted to solve the inhomogeneous linear differential equations representing wave equations in piezo-composite materials. In particular, transference of horizontally polarised shear (SH) waves is considered in bedded structure comprising of porous-piezo electric layer lying over a heterogeneous half-space. Propagation of SH-waves is considered to be influence...

Generation of Waves in Boussinesq Models using a Source Function Method

Generation of waves in Boussinesq models using a source function method

A method for generating waves in Boussinesq-type wave models is described. The method employs a source term added to the governing equations, either in the form of a mass source in the continuity equation or an applied pressure forcing in the momentum equations. Assuming linearity, we derive a transfer function which relates source amplitude to surface wave characteristics. We then test the mod...

A Source Function Method for Generation of Waves on Currents in Boussinesq Models

The Virtual Source Method

The virtual source method is a technique to image and monitor below a complex and time-varying overburden without the knowledge of overburden velocities and near-surface changes. It is based on extracting the response between a given pair of receivers by correlating the wavefields recorded by them and stacking over the physical sources. There are several challenges that arise while generating v...