Flumes4/15/2024 ![]() Liquid Flow Measurement in Open Channels: Guidelines for the Selection of Flow Gauging Structures. Here, the downstream level of flume is kept equal to the level of throat section hence, there may be backward flow into the throat section. Liquid Flow Measurement in Open Channels: Flat V Weirs. Submerged Venturi flume consists of gradual contraction on its upstream throat section in the middle and the gradual expanding section from the throat. Liquid Flow Measurement in Open Channels: Round Nose Horizontal Weirs. Liquid Flow Measurement in Open Channels: Triangular Profile Weirs (Crump). Liquid Flow Measurement in Open Channels: Flumes. Liquid Flow Measurement in Open Channels: Free Overfall Weirs of Finite Crest Width (Rectangular Broad Crested Weirs). Liquid Flow Measurement in Open Channels: Thin Plate Weirs. Evaluating the Performance of Electromagnetic Flow Meters. Square Edged Orifice Plates, Nozzles, and Venturi Tubes. Charts for the Hydraulic Design of Channels and Pipes. US Geological Survey Water Supply and Irrigation Paper 200. Weir Experiments, Coefficients and Formulas. 8, Department of the Environment (Water Data Unit), London. 54, Wageningen, The Netherlands.ĭouglas, J.F., Gasiorek, J.M. ![]() Flume-design and Calibration of Long Throated Measuring Flumes. Methods of Liquid Flow in Open Channels–Compound Gauging Structures. Guide to the Selection and Application of Flowmeters (no ISO equivalent). Specification for Electromagnetic Flow Meters (no ISO equivalent). 161, Delft Hydraulics Laboratory, Delft.īS 5792, 1980. Chapman & Hall, London.īaker, R.C., 1989. John Wiley and Sons, Chichester.Īddison, H., 1940. This gives smooth, uniform flow, free from entry effects.Ackers, P., White, W.R., Perkins, J.A. The digital inclinometer gives an accurate display of the channel angle.Ī pump with a speed controller, forces water up to the flow settling chamber at the upstream end of the channel. Flume definition: a deep narrow passage or mountain ravine with a stream flowing through it, often with great force. Screw jacks raise and lower the supports inclining the channel as required. It has a floor-standing frame that supports the working section at a convenient eye-level position for students. Square-section firmly supports the channel throughout its length. The flume is made of transparent glass, precision-built to ensure parallel walls and a consistently accurate cross-section along its length. This ancillary provides a closed sediment circuit consisting of a sediment trap and feed mechanism which allows sand to be pumped from the trap to a feeder located above the working section between experiments. Measurements from these instruments combined with the digital flow meter provide the potential for extensive analysis of open channel flow for research or advanced study.īed-load transport can be investigated using the optional Sediment Loop (FC300sl). ![]() The 32-way pressure display connects to TecQuipment’s VDAS® for real-time data acquisition.Įach FC300 is supplied with two level gauges (hook and point) and a Pitot tube, all of which mount onto and run along the instrument rails at the top of the flume. These tappings can connect either to a multi-tube manometer or to a 32-way pressure display. The flumes have pressure measurement tappings at 0.25 metre intervals along the working section. The flumes have a built-in re-circulating water supply connected to a digital flow metre for accurate measurements during experimentation. The flumes have various models available, giving students a wide choice of experimentation in open channel flow. The FC300 Series channels are 300 mm in width, 450 mm in height, and are available in 5 metre, 7.5 metre, 10 metre, 12.5 metre and 15 metre lengths.
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