Author: William R. Waldrop
Publisher:
ISBN:
Category : Deltas
Languages : en
Pages : 168
Book Description
Three-dimensional flow processes of a river emptying into the sea were analyzed. The basic equations which were derived to describe this flow included the effects of buoyancy caused by density differences between fresh and salt water, inertia of river and coastal currents, and differences in hydrostatic head throughout the mixing region. Turbulence effects were included through an appropriate eddy viscosity model. Combinations of river stages and tidal currents were represented as systems of steady-state flow fields. A numerical procedure was developed and implemented on a digital computer for the solution of the equations. This numerical procedure is classified as an asymptotic time-dependent finite-difference technique but includes certain features of a relaxation technique. Computed flow fields were used to track a distribution of nominal particles representing the suspended load of the river as determined from field data. Deposition of these particles was primarily governed by convective processes and particle settling velocities, which included the effect of a local turbulence level. Deposition rates were used to compute deltaic growth. Results were compared to a delta for which experimental data were available. (Author).
Three-dimensional Flow and Sediment Transport at River Mouths
Author: William R. Waldrop
Publisher:
ISBN:
Category : Deltas
Languages : en
Pages : 168
Book Description
Three-dimensional flow processes of a river emptying into the sea were analyzed. The basic equations which were derived to describe this flow included the effects of buoyancy caused by density differences between fresh and salt water, inertia of river and coastal currents, and differences in hydrostatic head throughout the mixing region. Turbulence effects were included through an appropriate eddy viscosity model. Combinations of river stages and tidal currents were represented as systems of steady-state flow fields. A numerical procedure was developed and implemented on a digital computer for the solution of the equations. This numerical procedure is classified as an asymptotic time-dependent finite-difference technique but includes certain features of a relaxation technique. Computed flow fields were used to track a distribution of nominal particles representing the suspended load of the river as determined from field data. Deposition of these particles was primarily governed by convective processes and particle settling velocities, which included the effect of a local turbulence level. Deposition rates were used to compute deltaic growth. Results were compared to a delta for which experimental data were available. (Author).
Publisher:
ISBN:
Category : Deltas
Languages : en
Pages : 168
Book Description
Three-dimensional flow processes of a river emptying into the sea were analyzed. The basic equations which were derived to describe this flow included the effects of buoyancy caused by density differences between fresh and salt water, inertia of river and coastal currents, and differences in hydrostatic head throughout the mixing region. Turbulence effects were included through an appropriate eddy viscosity model. Combinations of river stages and tidal currents were represented as systems of steady-state flow fields. A numerical procedure was developed and implemented on a digital computer for the solution of the equations. This numerical procedure is classified as an asymptotic time-dependent finite-difference technique but includes certain features of a relaxation technique. Computed flow fields were used to track a distribution of nominal particles representing the suspended load of the river as determined from field data. Deposition of these particles was primarily governed by convective processes and particle settling velocities, which included the effect of a local turbulence level. Deposition rates were used to compute deltaic growth. Results were compared to a delta for which experimental data were available. (Author).
Three-dimensional Numerical Simulation of Mobile-bed Hydrodynamics
Author: Miodrag Spasojevic
Publisher:
ISBN:
Category : Bed load
Languages : en
Pages : 172
Book Description
"This report describes the theoretical principles of three-dimensional sediment transport and bed-evolution processes, and numerical solution of the appropriate governing equations. It also includes technical documentation and user's instructions for the sediment-operations program module developed as an integral part of the CH3D code."--P. ii.
Publisher:
ISBN:
Category : Bed load
Languages : en
Pages : 172
Book Description
"This report describes the theoretical principles of three-dimensional sediment transport and bed-evolution processes, and numerical solution of the appropriate governing equations. It also includes technical documentation and user's instructions for the sediment-operations program module developed as an integral part of the CH3D code."--P. ii.
A Three-dimensional Numerical Model for Simulating Flow and Sediment Transport Processes in Fluvial and Deltaic Environments
Author: Shao-ou Chin
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 446
Book Description
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 446
Book Description
Computation of Three-dimensional Suspended Sediment Transport Within the DELFT3D-flow Module
Author: G. Lesser
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Three-Dimensional Flow in Tidal Channels
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
The objective of this project is to improve understanding of shallow estuarine flows and sediment transport by collecting and analyzing measurements of three-dimensional flow structure in tidal channels and adjacent tidal flats.
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
The objective of this project is to improve understanding of shallow estuarine flows and sediment transport by collecting and analyzing measurements of three-dimensional flow structure in tidal channels and adjacent tidal flats.
Selected Water Resources Abstracts
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 830
Book Description
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 830
Book Description
Book Catalog of the Library and Information Services Division: Subject index
Author: Environmental Science Information Center. Library and Information Services Division
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 438
Book Description
Publisher:
ISBN:
Category : Earth sciences
Languages : en
Pages : 438
Book Description
Coastal Sedimentary Environments
Author: R.A. Jr. Davis
Publisher: Springer Science & Business Media
ISBN: 1461250781
Category : Science
Languages : en
Pages : 692
Book Description
The zone where land and sea meet is composed of a variety of complex environments. The coastal areas of the world contain a large percentage of its population and are therefore of extreme economic importance. Industrial, residential, and recreational developments, as well as large urban complexes, occupy much of the coastal margin of most highly developed countries. Undoubtedly future expansion in many undeveloped maritime countries will also be concentrated on coastal areas. Accompanying our occupation of coasts in this age of technology is a dependence on coastal environments for transportation, food, water, defense, and recreation. In order to utilize the coastal zone to its capacity, and yet not plunder its resources, we must have extensive knowledge of the complex environments contained along the coasts. The many environments within the coastal zone include bays, estuaries, deltas, marshes, dunes, and beaches. A tremendously broad range of conditions is represented by these environments. Salinity may range from essentially fresh water in estuaries, such as along the east coast of the United States, to extreme hypersaline lagoons, such as Laguna Madre in Texas. Coastal environments may be in excess of a hundred meters deep (fjords) or may extend several meters above sea level in the form of dunes. Some coastal environments are well protected and are not subjected to high physical energy except for occasional storms, whereas beaches and tidal inlets are continuously modified by waves and currents.
Publisher: Springer Science & Business Media
ISBN: 1461250781
Category : Science
Languages : en
Pages : 692
Book Description
The zone where land and sea meet is composed of a variety of complex environments. The coastal areas of the world contain a large percentage of its population and are therefore of extreme economic importance. Industrial, residential, and recreational developments, as well as large urban complexes, occupy much of the coastal margin of most highly developed countries. Undoubtedly future expansion in many undeveloped maritime countries will also be concentrated on coastal areas. Accompanying our occupation of coasts in this age of technology is a dependence on coastal environments for transportation, food, water, defense, and recreation. In order to utilize the coastal zone to its capacity, and yet not plunder its resources, we must have extensive knowledge of the complex environments contained along the coasts. The many environments within the coastal zone include bays, estuaries, deltas, marshes, dunes, and beaches. A tremendously broad range of conditions is represented by these environments. Salinity may range from essentially fresh water in estuaries, such as along the east coast of the United States, to extreme hypersaline lagoons, such as Laguna Madre in Texas. Coastal environments may be in excess of a hundred meters deep (fjords) or may extend several meters above sea level in the form of dunes. Some coastal environments are well protected and are not subjected to high physical energy except for occasional storms, whereas beaches and tidal inlets are continuously modified by waves and currents.
Book catalog of the Library and Information Services Division
Author: Environmental Science Information Center. Library and Information Services Division
Publisher:
ISBN:
Category :
Languages : en
Pages : 444
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 444
Book Description
3-D Numerical Modeling of Flow and Sediment Transport in Rivers
Author: Muluneh Admass
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description