Results 61 to 70 of about 215,943 (214)

Modified method of characteristics for the shallow water equations

open access: yes, 2007
Flow in open channels is frequently modelled using the shallow water equations (SWEs) with an up-winded scheme often used for the nonlinear terms in the numerical scheme (Delis et al., 2000; Erduran et al., 2002). This paper presents a mathematical model
Copeland, G.M.   +2 more
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SEMI-IMPLICIT NUMERICAL SCHEMA IN SHALLOW WATER EQUATION

open access: yesJurnal Natural, 2017
. A two-dimensional shallow water equation integrated on depth water based on finite differential methods. Numerical solutions with different methods consist of explicit, implicit and semi-implicit schemes.
safwandi safwandi   +2 more
doaj   +1 more source

Habitat changes in response to pressures in the Verlorenvlei Estuarine Lake, South Africa

open access: yesSouth African Journal of Science
Verlorenvlei is a globally important RAMSAR wetland on the arid west coast of South Africa. A prolonged drought between 2016 and 2021 and increasing competition for water from the agricultural sector resulted in extremely low water levels.
Taryn Riddin   +3 more
doaj   +1 more source

MODELING OF SHIP MOVEMENT IN SHALLOW WATER ACCORDING TO A SPECIFIC TRAJECTORY AT VARIABLE DEPTH

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2017
Objectives. The movement of a ship in shallow water at both constant and variable depths of a navigation area is considered in  the article. With the deterioration of the navigation conditions, the  ship's handling is reduced; this is explained in terms ...
Z. M. Abdullaeva
doaj   +1 more source

Thermal management of an unconsolidated shallow urban groundwater body [PDF]

open access: yes, 2013
This study presents the development of tools for the sustainable thermal management of a shallow unconsolidated urban groundwater body in the city of Basel (Switzerland). The concept of the investigations is based on (1) a characterization of the present
F. Händel   +5 more
core   +1 more source

Extraction, Dynamics, and Driving Factors of Shallow Water Area in Hongze Lake Based on Landsat Imagery

open access: yesRemote Sensing
The dynamics of shallow water areas of inland lakes is closely related to the regional ecology and economy. However, it is still a challenge to extract the natural shallow water area for inland lakes using satellite images due to their rapid changes and ...
Nianao Liu   +4 more
doaj   +1 more source

WAVE INVESTIGATIONS IN SHALLOW WATER

open access: yesCoastal Engineering Proceedings, 1970
Examination of the significant heights of zero-crossing waves in the Elbe Estuary has yielded two noteworthy results: 1 In the deeper water of the estuary, the value of the quotient relating the significant and the mean wave heights is larger than on the bordering tidal flat. 2. The value of this function is dependent on the height of the waves; on the
openaire   +2 more sources

Droplet impact on a thin fluid layer

open access: yes, 2005
The initial stages of high-velocity droplet impact on a shallow water layer are described, with special emphasis given to the spray jet mechanics. Four stages of impact are delineated, with appropriate scalings, and the successively more important ...
Purvis, R   +12 more
core   +1 more source

Shallow Water Wave Characteristics

open access: yesCoastal Engineering 1972, 1972
Prototype data from 24 wave stations on and around the tidal flats south of the Elbe estuary enable us to elaborate special shallow water wave characteristics, concerning the variations and correlations of heights, periods, lengths and velocities. This paper deals with some interesting aspects from the engineer's point of view.
openaire   +2 more sources

The effect of water stage on the infiltration rate for initially dry channels

open access: yes, 2007
Several hydrological models that are used for simulating the water flow in rivers and channels are based on the shallow water equations as in Copeland and El-Hanafy, (2006) or Saint Venant equations (El-Hanafy and Copeland, 2007a). Both the shallow water
Copeland, Graham J.M., Elhanafy, Hossam
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