Accession Number : ADA332946

Title :   Validation Test Report for the Coastal Wave Refraction and Diffraction Model.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB STENNIS SPACE CENTER MS

Personal Author(s) : Hsu, Y. L. ; MacNaughton, Andrew

PDF Url : ADA332946

Report Date : 24 NOV 1997

Pagination or Media Count : 27

Abstract : In coastal water, wave propagation is affected by many dynamic processes, including shoaling, refraction, diffraction, and energy dissipation. The existing RCPWAVE wave model in the Navy-Standard surf model was developed for open coast with slowly varying bathymetry. it cannot handle certain coastline configurations such as those that include islands and peninsulas. It also has a serious numerical instability problem. The more recently developed REF/DIFi wave model has a more robust formulation and does not suffer from the same limitations. In this report, a systematic set of tests was conducted to evaluate the REF/DIFi. The tests evaluate the shoaling and refraction, combined refraction and diffraction, energy dissipation, and wave-current interaction properties of the model. The model results were compared to analytic solutions from linear wave theory, laboratory and field data. REF/DIFi was found to perform adequately in all tests. The REF/DIFi has been integrated into the Navy-Standard surf model.

Descriptors :   *VALIDATION, *DIFFRACTION, *REFRACTION, *WAVES, TEST AND EVALUATION, COASTAL REGIONS, MODELS, WATER, THEORY, ENERGY, NUMERICAL ANALYSIS, FORECASTING, WAVE PROPAGATION, MATHEMATICAL ANALYSIS, CONFIGURATIONS, SURF, PENINSULAS.

Subject Categories : Physical and Dynamic Oceanography
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE