Three-Layer Circulations in Estuaries and Harbors.

Abstract

A theory is developed for the three-layer circulation in an overmixed estuary (finite fresh-water influx) or harbor (zero fresh-water influx) accompanying a two-layer structure in the large body of water outside. A determinate set of algebraic equations is derived for the general case and the form of the equations shows that for zero fresh-water influx the discharge from a harbor is proportional to the square root of the density difference between the two outside fluids. The problem is solved completely when there is a uniform depth of the fluids inside and outside the harbor, when the fresh-water influx is zero and when the two layers of fluid outside the harbor are of equal thicknesses. A laboratory model reproduced the three-layer circulation of the theory.

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1976
Accession Number
ADA031282

Entities

People

  • Robert R. Long

Organizations

  • Johns Hopkins University

Tags

DTIC Thesaurus Topics

  • Buildings And Structures
  • Equations
  • Fluids
  • Fresh Water
  • Mathematics
  • Square Roots
  • Thickness
  • Water

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering
  • Fluid Dynamics.