DESCRIPTION
Flow over different sharp-crested weirs, investigations on an aerated overshoot weir
FEATURES
Flow over sharp-crested weirs
Typical measuring weirs
LEARNING OBJECTIVES/EXPERIMENTS
Free and submerged overfall at the sharp-crested weir
Effect of aeration on flow processes at plate weirs
Nappe observation of separation at a sharp-crested weir
Together with a level gauge:
Plate weirs as measuring weirs: determination of the discharge coefficient; comparison of the measuring weirs (Cipoletti, Rehbock, Thomson)
Determination of the discharge
Comparison of the theoretical and the measured discharge
SPECIFICATION
4 sharp-crested weirs for the experimental flume
rectangular weir with optional aeration as sharp-crested weir
Thomson weir, Cipoletti weir and Rehbock weir as measuring weirs
identical weir height for all weirs
holder for measuring weir to be studied
holder and rectangular weir both with lateral sealing lips
weir plates made of stainless steel
older and rectangular weir made of PVC
TECHNICAL DATA
Thomson weir
Triangular weir opening
Rehbock weir
Rectangular weir opening
CIPOLETTI WEIR
Trapezoidal weir opening;
LxWxH: 150x86x210 mm (holder)
LxWxH: 150x86x270 mm (rectangular weir)
Total weight: approx. 2kg
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