A throttle valve makes it possible to regulate the water flow rate. A series of park-away threaded holes along the bottom of the channel (spaced 250 mm apart) allows to fit the optional models. A guide is assembled on the sides of the channel to carry the accessories and the instruments necessary for the tests. The bottom of the channel can be tilted by up to 1.5 degrees, so as to simulate the normal inclinations of the real channels; it is also possible to obtain a slight negative slope. The centrifugal pump draws the water from the collection tank and transfers it to the still tank, where a manually operated vertical gate, which is assembled before the testing section, allows to vary the height of the hydraulic load. The unit is supplied with manuals that describe each component of the system, installation and utilization procedures, and gives many exercises.
The series of channels has been designed by to study the hydrodynamic phenomena of the open surface streams in variable inclination channels. The following versions are available:
Open Surface Tilting Flow Channel 5 m long
Open Surface Tilting Flow Channel 3 m long
Tilting Flow Channel is done by dropping a particle into a vertical liquid column and timing its fall between two points. Various sizes and density of particles are supplied including stream lined shaped objects. The Tilting Flow Channel apparatus is designed to study the drag of a particle in a liquid under various Reynold numbers. A guide at the top of the tube is provided to minimize disturbance to the liquid. A fluorescent tube light at the back of the liquid tube allows clear observation of the particle fall. Valves at the bottom of the tubes provide a mean for particle removal with minimum loss of the liquid.
Experiments:
Effect of boundary layer separation on motion of sphere.
Effect of particle shape on rate of fall and drag coefficient.
Measurement of drag coefficients of sphere under various Reynold numbers.
Exploration of dynamic similarity.
