I wrote: "If you want to run in horizontal vortex mode in order to increase
mixing and keep current above 15 amps, simply place vertical vanes all the
way across the channel near the pump."
The vanes would have to be fairly long in the flow direction, and located
at the elevation of the feeder mixer outlet, but in order to get good
mixing overall, not very deep, only 1 to 2 feet deep. The long vertical
vanes prevent a channel wide vertical axis vortex from forming. Horizontal
axis vortex action could be increased by directing feeder mixer wash
slightly upward or downward, or putting a small low-angle downward
deflecting vane directly in front of the mixer. Maybe the need for the
long vertical vanes could be eliminated simply by directing the pump output
slightly upward or downward, and making sure its flow is not directed side
to side at all.
=================================================\channel wall
----------------------------vane <---- 100 MGD current
O-----> feeder mixer outlet /wash
----------------------------vane <---- current
=====================================\ channel wall
Fig. 1 - Top view of channel
Again, all just food for thought. I may not have a good picture of your
configuration.
Regards,
Horace Heffner
