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Modeling Flow Rate and Head from a Pumped Artesian Well to Ground Storage Tank
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Modeling Flow Rate and Head from a Pumped Artesian Well to Ground Storage Tank
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nkg2
over 8 years ago
Good Evening! In looking in Advanced Water Distribution Modeling and Management (p 319-322) and the help section "Modeling a Pumped Groundwater Well", I think I have it understood but looking for reassurances. The well installer recently installed a new well pump at X depth. The installer provided the pump information and the elevation of the pump set point. Static water level was reported at 0 since the well is artesian but pump level steadied out at Y elevation. What I don't have is time to get to pump level but quite frankly I don't think it is necessary per se (exception to determine draw down in storage to cycle the well pump enough to keep the well from pouring out, but that is another study). Reason why I say it is not necessary is that at this point in time, I know the flow rate out of the well head at PL which then will correspond to particular point on the curve to give me the max head of that pump at any time (after so many seconds). So it can only go down from there and with only two data points I will have a linear line which will not necessarily be representative of the true curve. What I am trying to model at this point in the software is I have my storage tank and I am going to set it up with a separate inlet and outlet to ensure that in the future disinfection storage is satisfied up front but based on what I need in the tank, I need to ensure mixing in the tank and I am looking to internal nozzles/diffusers from the inlet pipe. I need to determine the flow rate and head being delivered to nozzles to ensure that I specify the right mixers to help keep age in the tank minimal and to prevent dead zones. So really I am looking for opinions on the modeling. Do I just assign a junction instead of modeling a pumped groundwater well? What other information could I learn from modeling the groundwater well with the information I have now without having to obtain additional data points? Thanks in advance!