Movie:River Engineering: Difference between revisions
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{{Attribute movie1 | {{Attribute movie1 | ||
|Movie domain = terrestrial, hydrology | |Movie domain=terrestrial, hydrology | ||
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{{Attribute movie2 | {{Attribute movie2 | ||
|Movie keywords = Channel Processes | |Movie keywords=Channel Processes | ||
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{{Attribute movie3 | {{Attribute movie3 | ||
|Animation model name = 3D Detached Eddy Simulations | |Animation model name=3D Detached Eddy Simulations | ||
|First name contributor=George | |First name contributor=George | ||
|Last name contributor =Constantinescu | |Last name contributor=Constantinescu | ||
|Location movie=-- | |Location movie=-- | ||
|Timespan movie=-- | |Timespan movie=-- | ||
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{{Movie description | {{Movie description | ||
|Grade level=Under graduate (13-16), Graduate / Professional | |Grade level=Under graduate (13-16), Graduate / Professional | ||
|One-line movie description = Flow field around two common structures in rivers | |One-line movie description=Flow field around two common structures in rivers | ||
|Extended movie description=These two movies show flow field around two common structures in rivers. | |Extended movie description=These two movies show flow field around two common structures in rivers. | ||
Latest revision as of 16:31, 21 June 2017
Information Page: River Engineering
Play Animation
Pollution Propagation in River with Groyns
Key Attributes
| Domain: | terrestrial, hydrology |
| Keywords: | Channel Processes |
| Model name: | 3D Detached Eddy Simulations |
| Name: | George, Constantinescu |
| Where: | -- |
| When: | -- |
Short Description
Grade level: Under graduate (13-16), Graduate / Professional
Statement: Flow field around two common structures in rivers
Abstract: These two movies show flow field around two common structures in rivers.
Groynes are one of the most effective approaches to stabilize eroding banks and to sustain navigable channels at proper depth. They are utilized in river bank protection as well as restoration projects (e.g., restore fish habitat in degraded streams). This movie shows the case of accidental pollution, a series of groynes can substantially modify the dispersion of the pollutant cloud in the river reach.
Bridge Pillars that support the structure change the flow field and promote local differences in sedimentation and erosion. This movie illustrates the shear stress around a bridge pier.
Theory
Mississippi
A groyn is a rigid hydraulic structure built from an ocean shore (in coastal engineering) or from a bank (in rivers) that interrupts water flow and limits the movement of sediment. In some cases it keeps velocity in the main channel such that it is suitable for shipping. In a river, groynes prevent bank erosion and ice-jamming, which in turn aids navigation. The areas between groups of groynes are groyne fields. Groynes can be made of wood, concrete, or rock piles. Their use goes back many centuries.
Links
References
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