Fluid mechanics > Tilting flow channels

HF 515A TILTING FLOW CHANNEL, 150 mm wide, Adjustable bed




The settlement of river water sediments over a long period of time results is a shallow river bed. Occasional dredging may be required to deepen the river bed for navigation purpose. The adjustable bed flow channel allows a study of flow under the simulated shallow and deepened river bed.

This is a self contained open channel designed for studying flow phenomena with change in bed slope. It is a service unit to be used with optional accessories and models below.

The channel is of rectangular cross section supported by rectangular steel frame. Side walls are transparent to allow full observation and are supported by adjustable steel brackets to ensure accurate wall alignment.  Tilting can be adjusted by a manual screw jack. The middle section of the bed can be adjusted manually upward or downward by a screw. A head tank with a stilling baffle provides a smooth flow and water is returned to the storage tank via an end tank. Models are attached to the top edges or bed of the flume by screws. Screw holes at the bed can also be used for pressure tapping to measure pressure loss along the channel length.

Instruction manual is also included.

  • Open channel flow

  • Flow measurement

  • Hydraulic jump

  • Continuity and energy equations

  • Discharge under sluice gate

  • Channel size
:  150 mm wide, 350 mm high   
  • Channel length
:  5 m (Extended length can be supplied on request.)   
  • Tilting adjustment
:  -1% to +3%   
  • Side walls
: Clear acrylic or tempered glass, with clear vertical scale   
  • Channel bed
:  Stainless steel   
  • Bed adjustment
: Upward and downward   
  • Water storage tank
:  1   
  • Head tank
:  Stainless steel   
  • Pump      
:  1   
  • End tank
:  Stainless steel   
  • Sluice gate
:  Stainless steel, rack and pinion type, built in at downstream end of the channel   
  • Flow measurement
:  Water meter with stop watch.   
  • Power supply

:  220 V, 1 Ph, 50 Hz. Other power supply is available on request.

  • Net (unassembled) Shipping Dimensions WxLxH: 100 x 700 x 160 cm
  • Net Weight:  Approx. 620 kg
  • HF515AS                                    

Learning Software

to support both online/offline training with data calculation and analysis by manual data entry from analog measuring instruments.

  • HF515-019
Stainless steel vernier hook and point gauge 300 mm x 0.05 mm reading
  • HF515-019A
Stainless steel hook and point gauge 300 mm x 0.5 mm scale
  • HF515-020
Basic weir plate with stainless steel 60˚ V notch and rectangular notch weir attachment
  • HF515-022
Sharp crested weir
  • HF515-023
Broad crested weir, sharp edges
  • HF515-023A
Round edge attachment for HF515-023
  • HF515-024
Crump weir
  • HF510-025
Trapezoidal weir
  • HF515-030
Ogee weir consisting of base profile unit with both upstream and downstream pressure tappings and manometer board
  • HF515-031

Dam spillway consisting of base profile unit with different interchangeable downstream sections:

-  Toe, ski jump, piers and pegs, gravel box, or stop logs

  • HF515-033
Syphon spillway made from clear acrylic and PVC
  • HF515-034
Bridge pier, round or square
  • HF515-035
Culvert fittings: round or square , horizontal or drop inlet with or without entrance flare
  • HF515-036
Vibration pile
  • HF515-040
Venturi flume made from clear acrylic with stainless steel attachment.
  • HF515-050
Sluice gate, rack and pinion drive with stainless steel attachment
  • HF515-051
Sluice gate, sliding type with stainless steel attachment
  • HF515-052
Radial gate, rack and pinion drive, with stainless steel attachment
  • HF515-060
Pitot tube with manometer board for measurement of flow velocity at various channel actions
  • HF515-061
Current meter
  • HF515-070
Roughened bed, gravel, sand, or corrugated, 1.2 m
  • HF515-080
Wave generator with variable speed geared motor
  • HF515-081
Motorized tilting
  • HF515-082
Absorbing beach, plain, roughened, or permeable, 1.2 m
  • HP010
Flow digital display
  • Other accessories and models can be supplied on request.
  • Other optional equipment, please contact manufacturer ([email protected])
  • HF515AS                        
: Learning Software to support both online/offline training with data calculation and analysis by manual data entry from analog measuring instruments.