Unformatted text preview: 10.101 v v *P10.102 The widechannel flow in Fig. P10.102 changes from a
steep slope to one even steeper. Beginning at points a and
b, sketch and label the watersurface profiles which are
expected for gradually varied flow.
P10.103 A circular paintedsteel channel is running half full at
1 m3/s and is laid out on a slope of 5 m/km. Is this a mild
or steep slope, of type 1, 2, or 3? Take R 50 cm.
P10.104 The rectangularchannel flow in Fig. P10.104 expands to
a cross section 50 percent wider. Beginning at points a
and b, sketch and label the watersurface profiles which
are expected for gradually varied flow.
P10.105 In Prob. 10.84 the frictionless solution is y2 0.82 ft,
which we denote as x 0 just downstream of the gate.
If the channel is horizontal with n 0.018 and there is  eText Main Menu yn1
yc b Steep
yn2
Steeper P10.102
yc1 50% increase in
channel width a yn1 b yc2
yn2 Steep P10.104 yn1 Mild  a  no hydraulic jump, compute from gradually varied theory the downstream distance whe...
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 Spring '08
 Sakar
 Fluid Dynamics, Fig, eText Main Menu, subcritical flow

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