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A SEMI-ANALYTIC MODEL OF TIDAL INLETS AND THEIR EVOLUTION

Larson, Magnus LU ; Nunes De Brito Junior, Almir LU ; Tanaka, Hitoshi and Hanson, Hans LU (2018) 36th International Conference on Coastal Engineering (ICCE)
Abstract
The water exchange between the sea and a lagoon or bay through an inlet due to tides is a classical topic that has been investigated in a large number of studies (Keulegan, 1967; O’Brien and Dean, 1972; O’Brien and Clark, 1974; Escoffier, 1977). In this paper, a simple semi-analytic model of the flow induced by tides through an inlet connecting the sea to a lagoon or bay is developed. The model is employed to derive explicit expressions for key parameters associated with inlet flows such as bay water level amplitude, tidal prism, maximum inlet velocity, and mixing (retention) time. Also, the inlet flow model is combined with a sediment transport model to determine the conditions for equilibrium as well as the evolution of the inlet... (More)
The water exchange between the sea and a lagoon or bay through an inlet due to tides is a classical topic that has been investigated in a large number of studies (Keulegan, 1967; O’Brien and Dean, 1972; O’Brien and Clark, 1974; Escoffier, 1977). In this paper, a simple semi-analytic model of the flow induced by tides through an inlet connecting the sea to a lagoon or bay is developed. The model is employed to derive explicit expressions for key parameters associated with inlet flows such as bay water level amplitude, tidal prism, maximum inlet velocity, and mixing (retention) time. Also, the inlet flow model is combined with a sediment transport model to determine the conditions for equilibrium as well as the evolution of the inlet cross-sectional area towards equilibrium or closure.
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author
; ; and
organization
publishing date
type
Contribution to conference
publication status
published
subject
pages
2 pages
conference name
36th International Conference on Coastal Engineering (ICCE)
conference location
Baltimore, United States
conference dates
2018-07-30 - 2018-08-03
external identifiers
  • scopus:85074104125
DOI
10.9753/icce.v36.sediment.62
project
Simulating Morphological Evolution at Coastal Inlets due to Waves and Currents
language
English
LU publication?
yes
id
f2507a54-32a7-4bd7-9afa-b34d60b70eeb
date added to LUP
2019-09-24 11:33:17
date last changed
2022-02-01 01:02:18
@misc{f2507a54-32a7-4bd7-9afa-b34d60b70eeb,
  abstract     = {{The water exchange between the sea and a lagoon or bay through an inlet due to tides is a classical topic that has been investigated in a large number of studies (Keulegan, 1967; O’Brien and Dean, 1972; O’Brien and Clark, 1974; Escoffier, 1977). In this paper, a simple semi-analytic model of the flow induced by tides through an inlet connecting the sea to a lagoon or bay is developed. The model is employed to derive explicit expressions for key parameters associated with inlet flows such as bay water level amplitude, tidal prism, maximum inlet velocity, and mixing (retention) time. Also, the inlet flow model is combined with a sediment transport model to determine the conditions for equilibrium as well as the evolution of the inlet cross-sectional area towards equilibrium or closure.<br/>}},
  author       = {{Larson, Magnus and Nunes De Brito Junior, Almir and Tanaka, Hitoshi and Hanson, Hans}},
  language     = {{eng}},
  title        = {{A SEMI-ANALYTIC MODEL OF TIDAL INLETS AND THEIR EVOLUTION}},
  url          = {{http://dx.doi.org/10.9753/icce.v36.sediment.62}},
  doi          = {{10.9753/icce.v36.sediment.62}},
  year         = {{2018}},
}