NMLONG: Numerical Model to Simulate Wave Transformation and Longshore Current

Abstract

NMLONG is a PC-based model that calculates wave height, wave angle, mean water surface, and longshore current over an irregular bottom profile that can include longshore bars. The program includes features such as self-contained data entry, default values of model parameters, error trapping, on-line help, and graphics. The major assumptions in NMLONG are longshore homogeneity (straight and parallel bottom contours) and linear wave theory. Potential applications of NMLONG include estimating the distribution and magnitude of sediment or pollutant transport, estimating wave overtopping and wave forces, and preliminary structure design (e.g., length and placement of groins or breakwaters). The model parameters can be quickly changed for sensitivity analysis. NMLONG is useful for planning studies where funding and data limitations prevent use of two-dimensional models.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1991
Accession Number
ADA569708

Entities

Organizations

  • Coastal Engineering Research Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Breakwaters
  • Carriages
  • Civil Engineering
  • Coastal Engineering
  • Coefficients
  • Depth
  • Directories
  • Dissipation
  • Engineering
  • Engineers
  • Fluid Mechanics
  • Mechanics
  • Oceanography
  • Transport Ships
  • Two Dimensional
  • Waterways
  • Waves

Readers

  • Coastal Oceanography
  • Computational Modeling and Simulation
  • Computer Science.