The Limit of Applicability of Linear Wave Refraction Theory in a Convergence Zone.

Abstract

Reported is an experimental investigation to assess the limits of applicability of linear wave refraction theory in a convergence zone. One bottom topography with parallel circular contours symmetric about the center of the tank was used and three wave periods (1, 2, and 3 sec) were tested along with three wave heights for each period. All tests were conducted for nonbreaking waves. Data were obtained at 100 locations within the model basin for each condition tested. The data were analyzed on the basic assumption that the total energy was equally partitioned between potential energy and kinetic energy. The basic computation performed was to calculate the potential energy transmitted per unit width over one wave period. Measurements of the reflected energy from the underwater topographic variations indicated that such reflections were negligible. This was verified by computations using the long wave theory as well as a theory not requiring the long wave assumption.

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
ADA032767

Entities

People

  • Robert W. Whalin

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computations
  • Convergence
  • Convergence Zones (Sonar)
  • Energy
  • Kinetic Energy
  • Measurement
  • Model Basins
  • Potential Energy
  • Reflection
  • Refraction
  • Topography

Readers

  • Coastal Oceanography
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Structural Dynamics.