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  1. waterguy

    Vector Plots with Excel

    Does anybody know of any add-on tools that expand Excel's graphing capabilities to include the ability to generate vector plots and/or contour plots ? Alternatively are there any other programs (preferrably freeware) that is capable of plotting this type of information ? Thanks.
  2. waterguy

    Stability of passenger vehicles following tractor trailers

    Good day, Does anybody know of any research that has been done to look at the affects that turbulence generated by a transport truck (tractor trailer) would have on a passenger vehicle that is following the truck ? I've come across some material involving passing maneuvers and its affect on...
  3. waterguy

    Rip-Rap: Energy dissipation calculations

    Good Day, I'd like some thoughts from anybody who has had some experience in determining/calculating the amount of energy dissipation from a large sized (300mm to 500mm) angular rip-rap stones. I have a storm sewer outlet with a rip-rap "spillway" consisting of 300-500mm anugular...
  4. waterguy

    Frequency Analysis (Low Flow Conditions)

    Does anybody know of any good resources on the net or have any personel experience with low flow analysis (ie. 7Q20 flow etc...) ? We are involved in a project that requires the analysis of time series data (daily stream flow data) and the determination of the 7Q10 low flows (lowest average 7...
  5. waterguy

    Excel's ADDRESS function

    I have scoured the Excel help files and tried a variety of different things for what I thought was an easy task, and perhaps it is, but I'm just missing something. If I enter =ADDRESS(1,1) in a cell it returns "$A$1" as expected. Now, What I'm really interested in is the value...
  6. waterguy

    Empty Cells and "IF" statements

    I have a columm of data and need to calculate the sum of every seven (7) values. For Example, the sum of values 1 thru 7 (inclusive), then the sum of values 2 thru 8, then 3 thru 9, etc.... This is simple enough, but the problem is that the data is incomplete, and prior to summing the values I...
  7. waterguy

    Water quality from SWM pond

    Good Day, I'm working on a project in which a stormwater management pond is being utilized for both quantity (100 year) and quality control. Quality control is based on "Level 1" criteria (most stringent in the Province of Ontario). However, a concern has been raised by an ecologist...
  8. waterguy

    Orifice Equations

    Good Day, I have a question regarding equations for circular orifices. Can anybody provide an equation for discharge through a circular orifice that is PARTIALLY submerged ? We are doing a project which requires an orifice of substantial diameter (800mm dia.), but we have come across what...

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