Nonlinear Effects in Long Range Underwater Propagation.
Abstract
Research was carried out to determine the extent to which nonlinearity affects long range underwater propagation. The research was divided into three tasks. Task I. Shock pulse propagation in a homogeneous ocean. A numerical propagation program based on weak shock theory, with account taken of real ocean absorption and dispersion, was developed. Refraction(due to inhomogeneity of the medium) was neglected. Task II. Nonlinear propagation in a depth dependent ocean. The effect of refraction on nonlinear propagation distortion was the subject of this task. The approach was analytical. Ordinary absorption and dispersion were neglected. Task III. Nonlinear propagation in a caustic region. A time domain treatment of propagation of a finite amplitude pulse near a caustic was carried out.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 14, 1986
- Accession Number
- ADA173247
Entities
People
- David T. Blackstock
Organizations
- University of Texas at Austin