Nächste Seite:One dimensional hydrodynamic modelAufwärts:Models of Mathematical PhysicsVorherige Seite:Fujita systems

## Acoustic wave propagation in the ocean

The acoustic wave propagation in the ocean detailed modelled in the book of Ahluwalia D., Keller J. (1977) Wave propagation and Underwater Acoustics Lecture Notes in Physics, vol 70, Springer, Berlin . We have to consider the Helmholtz equation
in the strip . Here denotes  where  is the frequency (assumed to be fixed)  the reference sound velocity. The refraction index  being the sound velocity, which is esentially bounded in the strip. Consider a bounded domain  with Lipschitz boundary  which consists of  and  such that
Consider the problem with homogeneous Neumann boundary condition on  (hard bottom), a homogeneous Dirichlet condition on  (pressure release) and an inhomogenous Dirichlet condition on  with .

A late reference: M. Ikehata, G.N. Makrakis and G. Nakamura (2001) Inverse boundary value problem for ocean acoustics MMAS 24, 1-8

collected and worked out by Wolfgang Sprößig, TU-Bergakademie Freiberg