Lateral Waves from a Continuous Transition Layer,
Abstract
An exact integral expression is given for the velocity potential produced by a harmonic point source located in a semi-infinite isovelocity space. A transition layer separates the source region from a second constant velocity layer. A depth dependent sound speed with two adjustable parameters is employed for the transition region. The velocity potential for the lateral wave is obtained using the method of steepest descent. The results are in agreement with those for the special case of a linear transition layer. Inclusion of the lateral wave contribution should improve the theoretical predictions of pressure histories produced by underwater explosions at thermocline-related casutics that typically occur in the ocean at distances of less than five miles. These caustics are believed to be of tactical concern. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 21, 1972
- Accession Number
- AD0754754
Entities
People
- Hermenzo D. Jones
Organizations
- Naval Ordnance Laboratory