Accession Number:

ADA179788

Title:

Evaluation of Numerical Models for a Floating Breakwater.

Descriptive Note:

Final rept.,

Corporate Author:

TEKMARINE INC SIERRA MADRE CA

Personal Author(s):

Report Date:

1987-03-01

Pagination or Media Count:

67.0

Abstract:

A large number of existing state-of-the-art numerical models were reviewed for the purpose of selecting an efficient model to be used for routine analysis of wave attenuation and mooring forces assiciated with a floating breadwater. The models reviewed came from five basic categories Eigen Function Expansion Models, Green Function Models, Hybid Green Function Models, Finite Element Models and other models. The critical parameters in the selection process were a computational efficiency b ability to accommodate three-dimensional spectra as the input wave and c versatility relative to breakwater geometry and water depths. Based on these criteria, a Hybrid Green Function Model was selected as the optimum numerical model, followed by a Green Function Model. Recommendations are presented which include the acquisition and adaptation of the selected model and the comparison of output with corresponding prototype data. The two-dimensional model also was recommended for use as a fast diagnostic assessment tool. During test runs, investigators should pay special attention to the development of optimum procedures for determining the mooring force. Results of prototype tests performed by the Coastal Engineering Research Center and the Japanese Ministry of Transport can be used to support test runs.

Subject Categories:

  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE