Wave propagation in a non-uniform string

Numerical Study of Wave Propagation in a Non-uniform Flow

Internal wave beam propagation in non-uniform stratifications

In addition to being observable in laboratory experiments, internal wave beams are reported in geophysical settings, which are characterized by nonuniform density stratifications. Here, we perform a combined theoretical and experimental study of the propagation of internal wave beams in nonuniform density stratifications. Transmission and reflection coefficients, which can differ greatly for di...

Numerical wave propagation on non-uniform one-dimensional staggered grids

String Propagation in Gravitational Wave Backgrounds

The Conformal Field Theory of the current algebra of the centrally extended 2-d Euclidean group is analyzed. Its representations can be written in terms of four free fields (without background charge) with signature (−+++). We construct all irreducible representations of the current algebra with unitary base out of the free fields and their orbifolds. This is used to investigate the spectrum an...

A variable transformation approach for boundary element solutions of wave propagation in non-uniform potential flows

ABSTRACT A boundary element method in a transformed Taylor-Lorentz space-time is presented to solve sound propagation and scattering in weakly non-uniform subsonic potential flows. Boundary element solutions are conventionally provided for sound propagation and scattering in quiescent media. On the other hand, an effective approach to solve wave propagation in a non-uniform mean flow using boun...