Calculation of Far Field, Ship Radiation and Diffraction Waves
Abstract
This report outlines an initial set of approaches for calculating the far field radiation and diffraction wave generated by a ship advancing at constant speed and oscillating in the presence of ambient ocean waves. The commonly used strip theory for obtaining the near field solution is described in some detail. Several approaches are given for obtaining the far field singularity distribution. These include conversion of the calculated near field singularity distribution or forces to a line of singularities, or use of an amplitude which represents an integrated effect of the distribution. It is pointed out that the far field asymptotic behavior of the waves due to stationary singularities is well known and relatively simple to calculate. Several simplified approaches for calculating the corresponding behavior for the considerably more complex forward speed case are briefly discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 28, 1983
- Accession Number
- ADA126293
Entities
People
- Henry T. Wang
Organizations
- United States Naval Research Laboratory