Stilling Basins - Revision history

Rmanwaring at 23:32, 13 December 2022

2022-12-13T23:32:29Z

← Older revision		Revision as of 23:32, 13 December 2022
Line 5:		Line 5:
	Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocity is not high (less than 50 feet per second ([[Hydraulic Design of Stilling Basins and Energy Dissipators]], USBR, 1984). Type III basins contain baffle piers which are located on the stilling basin apron downstream of the chute blocks. Located at the end of both types of USBR stilling basins is an endsill, which may be leveled or sloped, that creates a tailwater to reduce the velocity of the flow leaving the basin. <ref name="ASDSO">[https://damsafety.org/dam-owners/outlet-erosion-control-structures ASDSO, 2022]</ref>		Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocity is not high (less than 50 feet per second ([[Hydraulic Design of Stilling Basins and Energy Dissipators]], USBR, 1984). Type III basins contain baffle piers which are located on the stilling basin apron downstream of the chute blocks. Located at the end of both types of USBR stilling basins is an endsill, which may be leveled or sloped, that creates a tailwater to reduce the velocity of the flow leaving the basin. <ref name="ASDSO">[https://damsafety.org/dam-owners/outlet-erosion-control-structures ASDSO, 2022]</ref>
	==Examples==		==Examples==
	{{Website Icon}} [[Hydraulic Jump Stilling Basin Examples\|See examples of energy dissipation using stilling basins]]		{{Website Icon}} [[Hydraulic Jump Stilling Basin Examples \| See examples of energy dissipation using stilling basins]]

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Rmanwaring at 23:32, 13 December 2022

2022-12-13T23:32:10Z

← Older revision		Revision as of 23:32, 13 December 2022
Line 3:		Line 3:
	----		----

	Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocity is not high (less than 50 feet per second ([[Hydraulic Design of Stilling Basins and Energy Dissipators]], USBR, 1984)). Type III basins contain baffle piers which are located on the stilling basin apron downstream of the chute blocks. Located at the end of both types of USBR stilling basins is an endsill, which may be leveled or sloped, that creates a tailwater to reduce the velocity of the flow leaving the basin. <ref name="ASDSO">[https://damsafety.org/dam-owners/outlet-erosion-control-structures ASDSO, 2022]</ref>		Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocity is not high (less than 50 feet per second ([[Hydraulic Design of Stilling Basins and Energy Dissipators]], USBR, 1984). Type III basins contain baffle piers which are located on the stilling basin apron downstream of the chute blocks. Located at the end of both types of USBR stilling basins is an endsill, which may be leveled or sloped, that creates a tailwater to reduce the velocity of the flow leaving the basin. <ref name="ASDSO">[https://damsafety.org/dam-owners/outlet-erosion-control-structures ASDSO, 2022]</ref>
	==Examples==		==Examples==
	{{Website Icon}} [[Hydraulic Jump Stilling Basin Examples\|See examples of energy dissipation using stilling basins]]		{{Website Icon}} [[Hydraulic Jump Stilling Basin Examples\|See examples of energy dissipation using stilling basins]]

Grichards at 19:28, 2 December 2022

2022-12-02T19:28:56Z

← Older revision		Revision as of 19:28, 2 December 2022
Line 4:		Line 4:

	Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocity is not high (less than 50 feet per second ([[Hydraulic Design of Stilling Basins and Energy Dissipators]], USBR, 1984)). Type III basins contain baffle piers which are located on the stilling basin apron downstream of the chute blocks. Located at the end of both types of USBR stilling basins is an endsill, which may be leveled or sloped, that creates a tailwater to reduce the velocity of the flow leaving the basin. <ref name="ASDSO">[https://damsafety.org/dam-owners/outlet-erosion-control-structures ASDSO, 2022]</ref>		Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocity is not high (less than 50 feet per second ([[Hydraulic Design of Stilling Basins and Energy Dissipators]], USBR, 1984)). Type III basins contain baffle piers which are located on the stilling basin apron downstream of the chute blocks. Located at the end of both types of USBR stilling basins is an endsill, which may be leveled or sloped, that creates a tailwater to reduce the velocity of the flow leaving the basin. <ref name="ASDSO">[https://damsafety.org/dam-owners/outlet-erosion-control-structures ASDSO, 2022]</ref>
			==Examples==
			{{Website Icon}} [[Hydraulic Jump Stilling Basin Examples\|See examples of energy dissipation using stilling basins]]

	<!-- For information on notation for in text citations visit https://www.mediawiki.org/wiki/Help:Cite Or simply enclose the citation as shown <ref> citation </ref> in the location of the in text mention. Citations will automatically populate below-->		<!-- For information on notation for in text citations visit https://www.mediawiki.org/wiki/Help:Cite Or simply enclose the citation as shown <ref> citation </ref> in the location of the in text mention. Citations will automatically populate below-->

Grichards: Created page with "NOTOC Category:Energy Dissipation ---- Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocit..."

2022-12-02T19:22:50Z

Created page with "__NOTOC__ Category:Energy Dissipation ---- Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocit..."

New page

__NOTOC__
[[Category:Energy Dissipation]]
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Type II and Type III stilling basins reduce the energy of the flow discharging from a spillway and allow the water to enter the outlet channel at a reduced velocity. Type II basins contain chute blocks at the upstream end and a dentated (tooth-like) endsill. Baffle piers are not used in a Type II basin because of the high velocity water entering the basin. Type III energy dissipators can be used if the entering flow velocity is not high (less than 50 feet per second ([[Hydraulic Design of Stilling Basins and Energy Dissipators]], USBR, 1984)). Type III basins contain baffle piers which are located on the stilling basin apron downstream of the chute blocks. Located at the end of both types of USBR stilling basins is an endsill, which may be leveled or sloped, that creates a tailwater to reduce the velocity of the flow leaving the basin. <ref name="ASDSO">[https://damsafety.org/dam-owners/outlet-erosion-control-structures ASDSO, 2022]</ref>


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