The channel is designed for studying the sediment transport and bed forms as well as flow phenomena without sediment. It is a service unit to be used with optional accessories and models. Instruction manual is also included.
The channel bed rests on twin I-beam under frame which ensures static loading deflections are kept to a minimum. The length of the I-beam is about 6 m Each section is shipped with glass side walls. This simplifies site installation as there are less joints and is easier to ensure straight side walls throughout the length. To ensure minimum deflection, the I beam base frame of 18 m is supported by a fulcrum at the middle and adjustable height support at both up stream and down stream ends for a total of 3 supports. The number of supports is 5 for 30 m channel length.
Each adjustable height support uses twin screws and with a system of worm and wheel gear boxes and miter gears which are intern driven by a motor. A slope scale is provided at one end of the flume.
The channel bed is made of stainless steel with twin screw holes of equal distance along the channel length to hold accessories or models to the flume bed when used as a normal tilting flow channel. These holes can also be used for pressure tapping points to measure pressure loss along the channel length.
For safety reasons, the side walls are made of tempered glass. The walls are supported at interval by brackets with screws for vertical position adjustment.
Top rails made of stainless steel tubes are attached to the top angle on each wall of the channel. Screws supporting the rails can be adjusted to ensure uniform height and in a straight line. A scale graduated in mm. is attached along the full length of one top angle of the walls. The instrument carriage is manually operated.
The head tank is made of stainless steel and its sides and bottom are curved to ensure smooth flow into the channel. Perforated plates are also provided in the head tank to further smoothen the flow.
The channel bed may be filled by a sediment feeder with a slope stopper upstream and another one just before sediment trap at the downstream end of the channel. Feeding is by a screw.
A Sediment trap is provided at the down stream end of the channel. The trapped sediment can be discharged by a bottom value. The trap is covered when used as a normal flow channel.
An underground concrete storage tank is recommended as standard. This tank is to be built by the user. However, above ground tank is available at additional cost.
A steel walkway with a checker plate floor and side rails is provided on one side of the flume for ease of model installation and flow observations.
The pump is ceramic coated to minimize wear by sediment abrasion. A mechanical seal is used. A geared butterfly valve is provided to control accurate rate of flow.
A flow digital display is used. In the case of an underground storage tank, a measuring tank with a calibrated weir is available as an option. The flow rate is controlled by a geared butterfly valve.
Model and Accessories
In the case of no sediment, the channel may be used as a normal tilting flow channel. All accessories and models have side seals to ensure no water seep or leak through the sides of the models. A wide variety of models and accessories are available as an option.
|As Sediment Channel:|
|- Fixed smooth bed flow.|
|- Flow over mobile sand bed.|
|- Flow structures.|
|- Local scour.|
|- Mechanics of sediment transport.|
|- Bed form hysteresis.|
|- Depositionary features and fancies.|
|- Computational work.|
|- Flow over fixed gravel bed.|
|As Tilting Flow Channel:|
|- Flow measurement.|
|- Hydraulic jump.|
|- Analysis of model structures.|
|- Gauging structures.|
|- Velocity profile.|
|- Continuity and energy equations.|
|- Similarity laws.|
|- Roughened bed characteristics.|
|- Surge propagation.|
|Channel cross section||600 mm wide, 700 mm high|
|Channel length||18 m (Optional: 12 m)|
|Tilting adjustment||-0.5 to 2%|
|Side walls||Tempered glass|
|Channel bed||Stainless steel|
|Sediment trap||Stainless steel with cover and sediment recovery system|
|Storage tank||Underground tank to be provided by user. Aboveground tank is optional|
|Head tank||Stainless steel|
|Sluice gate||Stainless steel, rack and pinion type, built-in at downstream end of flume|
|Flow measurement||Flow digital display|
|Software for data display and analysis by computer (separately supplied).|
|Power supply||380 V, 3 Ph, 50 Hz. Other power supply is available on request.|
|Part No.||Part Name|
|As A Sediment Flow Channel:|
|HF 566-010||Sediment drying oven.|
|As A Tilting Flow Channel:|
|HF 566-017||Flow calibration tank|
|HF 566-019||Stainless steel vernier hook and point gauge with vertical and horizontal movement|
|HF 566-020||Basic weir plate with stainless steel 60˚ V notch and rectangular notch weir attachment.|
|HF 566-022||Sharp crested weir|
|HF 566-023||Broad crested weir sharp edges|
|HF 566-023A||Round edge attachment for HF560-023|
|HF 566-024||Crump weir|
|HF 566-025||Trapezoidal weir|
|HF 566-030||Ogee weir|
|HF 560-031||Dam spillway|
|HF 560-032||USBR type 23 or 4 energy dissipater|
|HF 560-033||Syphon spillway|
|HF 560-034||Bridge pier round or square edge|
|HF 560-035||Culvert fittings round or square horizontal or drop inlet with or without entrance flare.|
|HF 560-036||Vibration pile|
|HF 560-040||Venturi flume|
|HF 560-041||Parshall flume.|
|HF 560-042||Submerged orifice made from stainless steel on plastics.|
|HF 560-050||Sluice gate rack and pinion drive with stainless steel attachment|
|HF 560-052||Radial gate rack and pinion drive with stainless steel attachment|
|HF 560-060||Pitot tube with manometer board for measurement of flow velocity and various channel sections|
|HF 560-061||Current meter|
|HF 560-065||Lift and drag balance and models large and small cylinders and aerofoil section|
|HF 560-070||Roughened bed gravel sand or corrugated|
|HF 560-080||Wave generator with 3HP variable speed geared motor|
|HF 560-082||Absorbing beach plain roughened or permeable|
|HF 560-085||End tank stainless steel at downstream end of flume|
|Fiber glass or stainless steel above storage tanks with lids|
|Other accessories and models can be supplied on request.|
|Other optional equipment please contact manufacturer (firstname.lastname@example.org)|
|Shipping Dimensions||One 40 ft. container (without storage tank)|