True or false E Hydraulic jump is a rapidly varied flow. L The specific energy is the energy at a cross-section of an open channel flow with respect to any arbitrary datum. L At critical depth, the specific energy is maximum.
True or false E Hydraulic jump is a rapidly varied flow. L The specific energy is the energy at a cross-section of an open channel flow with respect to any arbitrary datum. L At critical depth, the specific energy is maximum.
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Transcribed Image Text:True or false
E Hydraulic jump is a rapidly varied flow.
L The specific energy is the energy at a cross-section of an open channel flow with
respect to any arbitrary datum.
At critical depth, the specific energy is maximum.
A 2 m wide concrete rectangular channel with a roughness (n) of 0.012, a slope of 0.2
% and with water depth of 1 m, the estimated flow rate in the channel is 950 m/s.
Specific Force curve is the relationship between the specific force and the conjugate
water depths
The critical flow condition corresponds to the maximum specific discharge in a
channel for a fixed specific energy.
Open-channel flows are characterized by the presence of a liquid-gas interface called
the free surface.
I In open-channel flow, the depth of flow, discharge and the slopes of channel bottom
and of the free surface are dependent variables.
A channel built with the same cross section and bottom slope is called a PRISMATIC
CHANNEL.
Channel section, which is composed, of different roughness along the wetted
perimeter is called a compound channel.
L L
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