Maysoon Sharif's Individual Contribution Page

Summer 2009 Contributions

So far this summer, we adjusted the flocculator ports so that they appear at the bottom of the inner walls rather than the top. This change was made because having ports at the bottom makes more sense from a structural perspective. The change also required us to reverse the up/down orientation of the baffles and reassign the appropriate lengths accordingly in the Flocculator 3 program. It also required that the last channel have one less baffle than the previous channel to ensure that the water can flow under the last baffle and up over the channel to the sedimentation tank. However, removing the last baffle in the last channel resulted in the wrong up/down orientation in that channel. The baffles in the last channel were then reassigned elevations and lengths as necessary.

We also wrote a new script in the floctank program (see Flocchannelslotscript below) to draw slots into which the baffles could be slipped. The slots were all required to extend to the top of the tank from the elevation of the corresponding baffle.

For certain flow rates, one or two baffles in the last channel were positioned in the midst of the exit channel to the sedimentation tank. The x-direction position calculations for the last channel had to be changed in this case. When one baffle ended up in the exit channel, the first baffle was made to be placed a distance of S.FlocChannel from the end of the exit channel. The remaining baffles are then spaced evenly in the allowable space. When two baffles ended up in the exit channel, those two baffles were removed and the remaining baffles are spaced evenly in the channel. Two baffles must be removed to maintain an even number, and also to ensure that the spacing in the last channel is greater than that of the channel before.

Pages Created

Floctankbafflescript

Flocchannelslotscript