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2016
Open channels can range from small irrigation furrows to huge irrigation canals that are hundreds of kilometers long and supply billions of cubic meters per year for irrigation, industry, and domestic purposes. Agricultural canal categories include the irrigation district main, secondary and tertiary canals, laterals, on-farm irrigation ditches, and ...
Peter Waller, Muluneh Yitayew
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Open channels can range from small irrigation furrows to huge irrigation canals that are hundreds of kilometers long and supply billions of cubic meters per year for irrigation, industry, and domestic purposes. Agricultural canal categories include the irrigation district main, secondary and tertiary canals, laterals, on-farm irrigation ditches, and ...
Peter Waller, Muluneh Yitayew
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2020
In an open channel flow, only part of the current is at contact with walls and a free surface is present, usually at atmospheric pressure. In most cases, the curvature of the trajectories is negligible and a hydrostatic pressure distribution is achieved.
Longo S., Tanda M. G., Chiapponi L.
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In an open channel flow, only part of the current is at contact with walls and a free surface is present, usually at atmospheric pressure. In most cases, the curvature of the trajectories is negligible and a hydrostatic pressure distribution is achieved.
Longo S., Tanda M. G., Chiapponi L.
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2018
Open channels are conduits in which a fluid has a free surface or its boundary is exposed essentially to the atmosphere, and open-channel flows are referred to as liquid flows with free surfaces. An open channel is not completely filled by a liquid in general, which introduces the concept of wetted perimeter.
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Open channels are conduits in which a fluid has a free surface or its boundary is exposed essentially to the atmosphere, and open-channel flows are referred to as liquid flows with free surfaces. An open channel is not completely filled by a liquid in general, which introduces the concept of wetted perimeter.
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2019
Flow in open channels has been nature’s way of conveying water on the surface of the earth since the beginning of time. The following physical properties of fluids influence fluid motion, channel geometry, and help explain sediment transport. These are: mass; density; weight; specific weight; viscosity; shear; temperature; and elasticity and surface ...
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Flow in open channels has been nature’s way of conveying water on the surface of the earth since the beginning of time. The following physical properties of fluids influence fluid motion, channel geometry, and help explain sediment transport. These are: mass; density; weight; specific weight; viscosity; shear; temperature; and elasticity and surface ...
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Central schemes for open‐channel flow
International Journal for Numerical Methods in Fluids, 2003AbstractThe resolution of the Saint‐Venant equations for modelling shock phenomena in open‐channel flow by using the second‐order central schemes of Nessyahu and Tadmor (NT) and Kurganov and Tadmor (KT) is presented. The performances of the two schemes that we have extended to the non‐homogeneous case and that of the classical first‐order Lax ...
GOTTARDI G., VENUTELLI, MAURIZIO
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Parallel simulation of flows in open channels
Future Generation Computer Systems, 2002Summary: In this project, we apply our advanced free-surface flow solver to simulate flow in open channels at supercritical conditions. The finite element method is used to discretize the governing equations over fixed meshes. The finite element formulations have been implemented in parallel using message passing interface libraries.
Shahrouz Aliabadi +4 more
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Open channel flows with submerged obstructions
Journal of Fluid Mechanics, 1989Free-surface flows past a submerged triangular obstacle at the bottom of a channel are considered. The flow is assumed to be steady, two-dimensional and irrotational; the fluid is treated as inviseid and incompressible and gravity is taken into account. The problem is solved numerically by series truncation.
Dias, Frédéric +1 more
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1994
Streams and man-made channels have a free-water surface exposed to the atmosphere, so they are known as open channels. The cross-sectional area of flow can vary at a given place in a channel, and the velocity of flow depends on several variables. Pressure is atmospheric, and the energy causing the flow is elevational energy (gravity); gravity drives ...
Kyung H. Yoo, Claude E. Boyd
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Streams and man-made channels have a free-water surface exposed to the atmosphere, so they are known as open channels. The cross-sectional area of flow can vary at a given place in a channel, and the velocity of flow depends on several variables. Pressure is atmospheric, and the energy causing the flow is elevational energy (gravity); gravity drives ...
Kyung H. Yoo, Claude E. Boyd
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Flow in an open channel capillary
Journal of Fluid Mechanics, 1996The problem of capillary-driven flow in a V-shaped surface groove is addressed. A nonlinear diffusion equation for the liquid shape is derived from mass conservation and Poiseuille flow conditions. A similarity transformation for this nonlinear equation is obtained and the resulting ordinary differential equation is solved numerically for appropriate ...
Romero, L. A., Yost, F. G.
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1988
An open channel is one in which there is a free surface at atmospheric pressure e.g. canals, rivers and pipes which are not running full.
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An open channel is one in which there is a free surface at atmospheric pressure e.g. canals, rivers and pipes which are not running full.
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