DYNLET1 Model Formulation and User's Guide
Abstract
A state-of-the-art design-level model for predicting tide-dominated velocities and water level fluctuations at an inlet and interior back-bay system and detailed instruction in use of the model are presented. The model solves the full one-dimensional (1-D) shallow-water equations employing an implicit finite- difference technique. The model is named DYNLET1, reflecting the fact that it is a 1-D model of the dynamic (time-dependent) behavior of the tidal flow at inlets. The DYNLET1 numerical model was originally developed by Dr. Michael Amein, Civil Analysis Group, Inc., Raleigh, North Carolina, under contract to the U.S. Army Engineer Waterways Experiment Station (WES) Coastal Engineering Research Center (CERC). The model is capable of simulating 1-D fluid flow from the ocean through a tidal inlet, into back-bay regions, and up tributaries. An important feature of the model is the ability to represent an accurate flow distribution across any cross section, given the inherent limitations of a 1-D model. DYNLET1 has a rigorous theoretical foundation, is numerically implemented in a sound manner, and is capable of describing realistic situations. It provides detailed velocity information across the inlet channels, is able to describe multi-channel inlets, and importantly, is easy to operate on a personal computer. The model can be used for design-level studies for most inlets by providing reliable and accurate answers while requiring minimal modeling expertise, data entry, and numerical grid generation.... Hydrodynamics, Tidal inlet, Inlet, Tidal flow, Numerical model
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1993
- Accession Number
- ADA269843
Entities
People
- Mary A. Cialone
- Michael Amein
Organizations
- Coastal Engineering Research Center