DESCRIPTION The Orifice & Free Jet Flow accessory incorporates a constant head tank fed with water from the hydraulics bench. The orifice is installed at the base of this tank by means of a special wall fitting which provides a flush inside surface. The head is maintained at a constant value by an adjustable overflow pipe and is indicated by a level scale. A series of adjustable probes enable the path followed by the jet to be ascertained. Adjustable feet permit levelling. TECHNICAL SPECIFICATIONS Orifice diameters: 3.0mm and 6.0mm Jet trajectory probes: 8 Max constant head: 410mm Requires Hydraulics Bench Service unit F1-10/F1-10-2 EXPERIMENTAL CONTENT Establishing the coefficient of velocity for a small orifice Finding the coefficient of discharge for a small orifice with flow under constant head and flow under varying head Comparing the measured trajectory of a jet with that predicted by simple theory of mechanics Effect of tank level on jet outlet velocity
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