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re: patience on morganza
Posted on 5/13/11 at 2:59 pm to glb
Posted on 5/13/11 at 2:59 pm to glb
the power of the flow comes from the height differential. if there is 4 feet between the miss and the spillway, you get that sort of falling power. if the height is greater, you get exponentially more power. if the river is allowed to silt on the other side of the morganza spillway, you reduce the effectiveness of it with each foot of sedimentation allowed in the first couple of miles from the river. when you release the beast, you solve the sedimentation problem for many miles and for at least this year's flood (not to suggest it won't cause problems in the flood of 2015).
3
Posted on 5/13/11 at 3:03 pm to SCOTLANDtheBRAVE
quote:
not to suggest it won't cause problems in the flood of 2015
Haven't you heard? The Mayans predicted the end of the world in December 2012. So what 2015 flood?
Posted on 5/13/11 at 3:36 pm to SCOTLANDtheBRAVE
quote:
the power of the flow comes from the height differential. if there is 4 feet between the miss and the spillway, you get that sort of falling power. if the height is greater, you get exponentially more power. if the river is allowed to silt on the other side of the morganza spillway, you reduce the effectiveness of it with each foot of sedimentation allowed in the first couple of miles from the river.
I wasn't really asking for an explanation. What you are saying just isn't making sense. The water is going to have enough velocity that sediment deposition is not going to be a problem.
Posted on 5/13/11 at 5:36 pm to SCOTLANDtheBRAVE
quote:
the power of the flow comes from the height differential. if there is 4 feet between the miss and the spillway, you get that sort of falling power. if the height is greater, you get exponentially more power.
This is not true. Pressure varies linearly with depth.
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