Fluid mechanics > Tilting flow channels

HF 530 TILTING FLOW CHANNEL, 300 mm wide

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The channel is designed for studying the hydraulic flow phenomena. It is a service unit to be used with optional accessories and models below. Instruction manual is also included.

 

Under Frame

The channel bed rests on twin beam under frame which ensures static loading deflections are kept to a minimum. Each section is shipped with glass side walls. This simplifies site installation as there is only one joint and is easier to ensure alignment of the channel. The beams are supported by a fulcrum at one end and an adjustable height support at the other end.

 

Slope Adjustment

The adjustable height support uses twin screws. Each screw is driven by a worm and wheel gear box with a common motor. A slope scale is provided at one end of the flume.

 

Channel Bed

The channel bed is made of stainless steel with screw holes of equal distance along the channel length to hold accessories or models to the channel bed. These holes can also be used for pressure tapping to measure pressure loss along the channel length.

 

Side Walls

For safety reasons, the side walls are made of tempered glass or clear acrylic. The walls are supported at interval by brackets with screw adjustment to ensure that the channel wall is straight and vertical.

 

Instrument Carriage

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.

 

Head Tank

The head tank is made of stainless steel and bottom slope to ensure smooth flow into the channel. Perforated sheets are also provided in the head tank to further smoothen the flow.

 

Storage Tank

The storage tank has adequate water to fill the full channel. Fiber glass storage tank(s) is provided at downstream end of the channel. Capacity of tank varies according to channel length.

 

Model Installation

A mobile ladder is used. In the case of small fiber glass tanks (optional) are used, the top covers of the tanks (optional) are used as a walkway and model installation.

 

Circulating Pump

The pump seal is mechanical. A geared butterfly valves is provided for accurate flow control.

 

Flow measurement

A flow digital display is used for easy observation on flow adjustment. A water meter is available as an option and may be used as a reference for flow indicator setting later.

 

Model and Accessories

All accessories and models have side seals to ensure no water seepage or leakage through the sides of the models. A wide variety of models and accessories are available as an option.

  • Flow measurement

  • Hydraulic jump

  • Analysis of model structures

  • Gauging structures

  • Velocity profile

  • Continuity and energy equations

  • Similarity laws

  • Roughened bed characteristics

  • Surge propagation

  • Wave generation and absorption.

  • Channel size
: 300 mm wide, 450 mm high
  • Channel length
: 12 m working section (Other length, i.e. 6, 8, 10, 12.5 m, can be supplied on request.)
  • Total length
:  Additional length 3 m for head and storage tanks.
  • Tilting adjustment
:  -1% to +3%
  • Side walls
: Tempered glass
  • Channel bed
:  Stainless steel
  • Water storage tank
:  2 ea.
  • Sluice gate
:  Stainless steel, rack and pinion type, built in at downstream end of the channel
  • Pump
:  1
  • Flow measurement
:  Water meter with stop watch.
  • Instrument trolley
:  Manual operation
  • Power supply
:  220 V, 1 Ph, 50 Hz. Other power supply is available on request.
  • Shipping Dimensions: One 40 ft. container (without storage tank)
  • HF530S                                           

Learning Software

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

  • HF530-001A
Motorized instrument trolley instead of manually operated trolley
  • HF530-005
Small on ground fiber glass tanks connected in series along are side of the channel with checked plate lid as walk way. In this case, the mobile ladder is not required.
  • HF530-015
Flow measuring tank. The graduated tank is on a steel frame on wheels with a trough to take up water from the flume and a pump to return water to the storage tank.
  • HF530-016
Water meter
  • HF530-019
Stainless steel vernier hook and point gauge 450 mm with 0.05 mm reading graduation
  • HF530-019A
Stainless steel hook and point gauge 450 mm x 0.5 mm scale
  • HF530-020
Basic weir plate with stainless steel 60˚V notch and rectangular notch weir attachment
  • HF530-022
Sharp crested weir
  • HF530-023
Broad crested weir, sharp edges
  • HF530-023A
Round edge attachment for HF530-023
  • HF530-024
Crump weir
  • HF530-025
Trapezoidal weir
  • HF530-030
Ogee weir consisting of base profile unit with both upstream and downstream pressure tappings and manometer board
  • HF530-031

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

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

  • HF530-032
USBR type 2,3 or 4 energy dissipater
  • HF530-033
Syphon spillway made from clear acrylic and PVC
  • HF530-034
Bridge pier, round or square edge
  • HF530-035

Culvert fittings, round or square , horizontal or drop inlet with or without entrance flare

Tube is made from clear acrylic

  • HF530-036
Vibration pile
  • HF530-040
Venturi flume made from clear acrylic with stainless steel attachment.
  • HF530-041
Parshall flume made from clear acrylic with stainless steel attachment.
  • HF530-042
Submerged orifice made from stainless steel on plastics.
  • HF530-043
Trapezoidal flume made from clear acrylic.
  • HF530-050
Sluice gate, rack and pinion drive with stainless steel attachment
  • HF530-052
Radial gate, rack and pinion drive with stainless steel attachment
  • HF530-060
Pitot tube with manometer board for measurement of flow velocity and various channel sections
  • HF530-061
Current meter
  • HF530-065
Lift and drag balance and models, large and small cylinders and aerofoil section
  • HF530-070
Roughened bed, gravel, sand, or corrugated
  • HF530-075
Sediment transport study system
  • HF530-075R
Sediment transport study system with sediment recirculating system
 In this case, pump will be cover with ceramic for corrosion prevention.
  • HF530-080
Wave generator with 1HP variable speed geared motor
  • HF530-080F
Full randomly wave generator
 This include HF530-082 and HF530-080M.
  • HF530-080M
Wave measuring system
  • HF530-082
Absorbing beach, plain, roughened, or permeable
  • HF530-085
End tank, stainless steel, at downstream end of flume
  • HF530-090
Checker plate walkway along one side of the flume
  • Other accessories and models can be supplied on request.
  • HF530S                        
: Learning Software to support both online/offline training with data calculation and analysis by manual data entry from analog measuring instruments.
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