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The HM 161 Large Flow Channel is designed for a variety of experiments in the area of open flumes such as, for example, weirs, overflows, locks, oceanography and off-shore technology (including experiments on waves, measures for coastal protection such as dikes or beach simulations).
The HM 161 is currently the largest flow channel in this G.U.N.T. product range. It reaches an experimental length of 16m. The side panels are made of hardened glass to permit a virtually unobstructed view. The water supply is provided by several tanks. These are connected into the system such that they can also be used as a walkway so that the user can reach every part of the measured section. As soon as the tanks are connected together and to the channel itself, they provide an adequate water supply that, once filled, is independent of the local water mains. The inlet, outlet and tank are made of GFRP to combine high strength and a long service life with low weight. Because the unit can be set up anywhere, its suitability to specific local conditions is guaranteed.
Key components in the basic unit include the specially designed inlet area that creates a homogeneous flow, a centrifugal pump for creating the water circuit, a motorised shut-off flap for adjusting the flow rate, a magnetic-inductive flow meter and motorised inclination adjustment that is used to compensate for flow losses or to simulate a natural gradient. With a flow rate from approx. 330m³/h, at maximum cross-section a flow speed of approx. 0.2m/s is achieved. |
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Learning Objectives / Experiments |
· Measurement of flow rate
· Influence of wall shape on flow
· Testing of customised experimental setups
· The spectrum expands considerably if accessories are used, among others experiments in the following areas are possible:
· Flow processes in the open channel (e.g. speed profiles, inclination, usage of various bodies, application of the continuity equation, etc.)
· Flow over numerous types of weir
· Experiments on waves, e.g. wave shapes |
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Features
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Basic unit for execution of flow-related experiments in open flumes
Accessories from all areas of hydromechanics
Specially designed inlet area creates homogeneous flow
Measured section with transparent sidewalls |
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Available accessories
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HM 161.29 -- Sluice Gate
HM 161.30 -- Plate Weirs Set of 2 Plates
HM 161.31 -- Broad Crested Weirs Set of two
HM 161.33 -- Crump Weir with Piezometer Tubes
HM 161.34 -- Ogee Weir with Manometer Board
HM 161.36 -- Siphon Spillway
HM 161.41 -- Wave Generator Flap-Type
HM 161.42 -- Beach Simulation Plain Characteristic
HM 161.45 -- Culvert Fittings
HM 161.46 -- Flow Splitters Set of three Models
HM 161.50 -- Pitotstatic Tube with Digital Display
HM 161.51 -- Venturi Flume
HM 161.52 -- Level Gauge
HM 161.53 -- Manometer Board
HM 161.54 -- Base Plate for Clamping of Models
HM 161.55 -- Parshall Flume
HM 161.59 -- Instrument Carriage
HM 161.60 -- Vibratory Sediment Feeder and Trap
HM 161.74 -- Paddle and Blocking Plate
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Alternative products
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HM 162 -- Modular Flow Channel / 300 x 450 mm
HM 163 -- Modular Flow Channel 5 m, Working Section 400x500 mm
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| Specification |
[1] Basic unit for flow-related experiments in open flumes
[2] lxwxh 20000x4000x4000mm,
weight empty 4t
[3] Flow cross-section 800x600mm
[4] Measured length 16m
[5] Pump, 15kW
[6] Inclination adjustment
[7] Sidewalls made of hardened glass
[8] Tank, inlet and outlet made of GFRP
[9] 400V, 3~50Hz |
| Technical Data |
Pump, type 100/250
Max. capacity: 360m³/h
Max. head: 8m
Inclination adjustment: -0.75...2.1%
3 spindle lifting drive
Flow rate measurement: magnetic-inductive,
Measuring range: 0-480m³/h, accuracy 0,3%
Tanks:
collecting tank 2300ltr
5 supply tanks of 4300ltr each |
| Dimensions and Weight |
lxwxh : 20000 x 4000 x 4000 mm
Weight empty : approx. 4000 kg |
| Connections |
| 400V, 3~50Hz |
| Scope of Delivery |
| 1 flow channel, 1 instruction manual |
| Order Details |
070.16100 HM 161 Large Flow Channel
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