TRAINING OBJECTIVES
Open channel:
• Study of water flows through open channels identifying variables like:
– Water height
– Speed at different points of the cross-sectional area.
• Study of constant water flow, gradually varied flow and behavior of surface profiles.
• Study and utilization of thin edged weir for flow measurements.
– Rectangular weir without lateral contraction.
• Study and utilization of broad crested weir for flow measurements.
– Rectangular weir.
• Analysis and study of discharge under a gate.
– Vertical weir
• Study of jump spillway
• Water flow analysis on the weir
Closed channel:
• Measurement of static, dynamic and total pressure in a closed channel.
• Study of water flows in a closed pipe with constant cross sectional area.
• Study of pipe flow with variable cross-sectional area to demonstrate the Bernoulli equation.
TECHNICAL DATA
Tank:
• Section of the channel (W x H): 77 x 150 mm
• Length of the channel: 1130 mm.
• Methacrylate channel for clear visualization of the behavior of the water with the different weirs.
• Weirs in the inlet and outlet tanks for an easy control of the height of the water slide.
• Calming the flow of water into the inlet.
• Cap on the top of the channel for an easy exchange of the different weirs.
• The channel bottom c sheet can be modified in height for altering the cross-section of the channel, when it works as a closed channel.
• Structure in anodized aluminum, with wheels to facilitates its handling.
• Approximate Dimensions: 2000 x 500 x1500 mm.
Accessories included:
• 6-tube multi-gauge for the measurement of static and total pressure throughout the channel
• Rectangular thick wall weir
• Thin wall weir without contraction
• Ogee type overflow weir
HYDRAULIC FLOW CHANNEL DEMONSTRATOR
The purpose of this didactic trainer is to study the flow behavior in open channels and closed pipes, by realizing some experiments in both conditions.
The channel is totally transparent so it allows an clear observation of the hydraulic flow.
In order to carry out the experiments in a closed channel, the trainer includes a cover for hermetically sealing.
Pitot tubes are positioned along the whole length of the channel: this allows the measuring of the working pressure in 6 points.
These value pressure points are gathered into the 6 tubes manometer.
By floodgates, it is possible to increase water volume in the inlet or outlet tanks.
