SET OF PLATE WEIRS, FOUR TYPES : PSAW-722FM
Sharp-crested
weirs are control structures causing a defined backwater. Additionally, they
are often used to determine the discharge of an open channel.
Contains four
different plate weirs as sharp-crested weirs. The fundamentals of flow over
sharp-crested weirs are demonstrated with the rectangular weir with optional
aeration. The other weirs are typical measuring weirs with defined openings:
the opening of the Thomson weir is triangular, the opening of the Rehbock weir
is rectangular and for the Cipoletti weir, it’s trapezoidal.
TECHNICAL 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
·
Holder and rectangular weir made of PVC
TECHNICAL DETAILS:
·
Thomson weir
a) Triangular
weir opening
·
Rehbock weir
a) Rectangular
weir opening
b) Dimension
LxWxH : 150x86x270 mm (rectangular weir)
·
Cipoletti weir
a) Trapezoidal
weir opening
·
Crump weir
a) Upstream
and Downstream section
TECHNICAL DATA:
·
Weir body made of PVC
·
Inclination (upstream) : 1:2
·
Inclination (downstream) : 1:5
·
Dimension LxWxH : 420x84x60
mm
·
Total weight : approx.
2kg
SPECIFICATION:
·
Crump weir for the experimental flume
·
Weir body contour according to E. S.
Crump
·
Weir body with sealing lips
EXPERIMENTATION:
·
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
·
Plate weirs as measuring weirs:
determination of the discharge coefficient; comparison of the measuring weirs
(cipoletti, rehbock, Thomson, Crump)
·
Determination of the discharge
Comparison of the theoretical and the
measured discharge.
