application of weirs

[docmartin]

Does anyone know where discharge coeffients for a sharp nosed broad crested weir can be found.
Also, I need to put a baffle in a tank to reduce turbulance before a pump intake, and I know that there must be a certain amount of clearance. Does anyone know where I can find some information on these two topics?

 

[TBP]

See if you can find a copy of "Cameron Hydraulic Data" from Ingersoll-Dresser, or "Water And Waste Treatment Data BooK" from Permutit. (The Permutit book's info on weirs is taken from CHD, and is identical.)

As far as the tank baffle goes, see if the pump manfacturer has any information or requirements. For applications like circulating pumps for hot water heating and chilled water loops, some pump makers have a 90* fitting with vanes inside to permit installation in close quarters where you can't get the required number of straight diameters of suction piping simply because there is no room.