HY8:Contra Costa Basin: Difference between revisions
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===Contra Costa Basin=== | ===Contra Costa Basin=== | ||
The input variables required for this calculation is the following: | The input variables required for this calculation is the following: | ||
* Baffle Block Height Ratio — The ratio of the baffle block height to baffle block distance from the culvert. | |||
* Baffle Block Height Ratio | * End Sill Height to Maximum Depth Ratio — ratio to determine the end sill height from the maximum depth. | ||
* End Sill Height to Maximum Depth Ratio | * Basin Width — The channel width is recommended for the basin width. | ||
* Basin Width | |||
The following figures show the design of a Contra Costa basin. | The following figures show the design of a Contra Costa basin. | ||
| Line 12: | Line 10: | ||
Variables from the figure | Variables from the figure | ||
* D — Diameter of culvert | |||
* D | * y<sub>0</sub> — Outlet depth | ||
* y<sub>0</sub> | * y<sub>2</sub> — Approximate maximum water surface depth | ||
* y<sub>2</sub> | * y<sub>3</sub> — Basin exit velocity | ||
* y<sub>3</sub> | * V<sub>0</sub> — Outlet velocity | ||
* V<sub>0</sub> | * V<sub>2</sub> — Exit velocity | ||
* V<sub>2</sub> | * h<sub>1</sub> — Height of small baffle | ||
* h<sub>1</sub> | * h<sub>2</sub> — Height of large baffle | ||
* h<sub>2</sub> | * h<sub>3</sub> — Height of end sill | ||
* h<sub>3</sub> | * L<sub>2</sub> — Length from culvert exit to large baffle | ||
* L<sub>2</sub> | * L<sub>3</sub> — Length from large baffle to end sill | ||
* L<sub>3</sub> | * L<sub>B</sub> — Basin length | ||
* L<sub>B</sub> | |||
{{HY8Main}} | {{HY8Main}} | ||
[[Category:Energy Dissipators|C]] | |||
Latest revision as of 14:39, 11 October 2016
Contra Costa Basin
The input variables required for this calculation is the following:
- Baffle Block Height Ratio — The ratio of the baffle block height to baffle block distance from the culvert.
- End Sill Height to Maximum Depth Ratio — ratio to determine the end sill height from the maximum depth.
- Basin Width — The channel width is recommended for the basin width.
The following figures show the design of a Contra Costa basin.
Variables from the figure
- D — Diameter of culvert
- y0 — Outlet depth
- y2 — Approximate maximum water surface depth
- y3 — Basin exit velocity
- V0 — Outlet velocity
- V2 — Exit velocity
- h1 — Height of small baffle
- h2 — Height of large baffle
- h3 — Height of end sill
- L2 — Length from culvert exit to large baffle
- L3 — Length from large baffle to end sill
- LB — Basin length
