• A clear culvert models, one of circular and one of rectangular section. 
• Enabling the observation and calculation of both open and orifice flow in a culvert.
• A clear acrylic 60° trapezoidal flume to enable the measurement of flows with the emphasis on low flow situations.

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• The module consists of a fan and instrumentation, all mounted on a robust, mobile trolley for ease of use. 
• The Universal Dynamometer measures the speed, torque and power absorbed by the fan. 
• Speed is fully variable up to the maximum allowable for the fan. 
• Slide-valve controls the airflow rate. The fan impeller is interchangeable. 
• Air enters the fan through a shaped nozzle, used to measure the airflow rate. 
• Air then moves past a slide-valve and out to atmosphere. 
• The fan housing has an interlock so the motor cannot run unless the user assembles the fan correctly. 
• This allows the user to safely change fan impellers. 
• Supplied with the fan are three different impellers for more tests on fan performance. 

• A clear acrylic.
• Self-regulating siphon that demonstrates the automatic adjustment of its discharge over a wide range while maintaining a mostly constant water level upstream. 
• The siphon passes a mixture of air and water.

• To be used with either the Spillway with Tappings. 
• The apparatus consists of a long apron and a selection of toothed and solid blocks that can be arranged in any combination on the apron. 
• For the study of the dissipation of energy.

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• The apparatus is made up of a coil of copper pipe 60 m long. 
• A second adjustable valve is at the discharge from the pipe, downstream of the solenoid valve. 
• The inlet connects to your water supply and the discharge end has a solenoid valve. 
• A bypass valve discharges to waste at the inlet end of the pipe. 
• This regulates the mean pressure in the pipe before the solenoid valve shuts.
• It also allows students to calibrate the pressure transducer. 
• An electronic pressure transducer near to the valve measures the pressure fluctuations in the pipe when the solenoid valve shuts. 
• A Bourdon pressure gauge fitted between the solenoid valve and the downstream control valve shows the pressure in the system. 

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• This kit includes two long lengths of smooth-walled pipe with multiple pressure tappings and a Pitot traverse. 
• The pipes connect to the inlet, so it becomes a suction fan for tests on the pipes.
• A Pitot traverse fits at the end of one long pipe to allow you to measure the velocity profile across a pipe and calculate the theoretical flow.  
• The pipe tappings connect to a multiway pressure display. 
• The multiple pressure tappings along the long pipes allow you to measure the pressure drop and therefore losses along them. 
• A probe mounts in an assembly so that it moves axially through an additional nozzle to measure its axial pressure profile. 
• This allows a comparison with the flow found from the nozzle and the orifice plate included with the kit.
• The kit includes three different fittings: two elbows and a bend, that each fit between the long pipes to test the pressure drop and therefore loss caused by the fitting. 

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• A pair of clear culvert models. 
• One of circular and one of rectangular section. 
• Enabling the observation and calculation of both open and orifice flow in a culvert.

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• A pair of sediment walls and four differently profiled bridge piers. 
• The apparatus is used to observe the increased flow velocity.
• The streamline curvature between the piers. 
• Also scouring of the stream bed.