The Orifice Discharge accessory consists of a cylindrical acrylic tank which has an orifice fitted in the base. A traverse assembly is provided which enables a pitot tube to be positioned anywhere in the jet.
Attached to this Pitot tube is a sharp blade which can be traversed across the jet to accurately measure the jet diameter and the vena contracta diameter and so determine the contraction coefficient.
The pitot head and the total head across the orifice are shown on manometer tubes adjacent to the tank.
EXPERIMENTS
Determining the contraction and velocity coefficients
Calculating the discharge coefficient
UTILITIES REQUIRED
Hydraulics Bench
TECHNICAL DETAILS
Product
Orifice Discharge
Product Code
FM-HBA-03
Max. Head
300mm
Traverse mechanism
lead screw with adjusting nut calibrated 0.1mm per division