0.05/(π0.175^2 /4)
2.1 m s^1.
A velocity of 2.1 m s^1 is expected to be sufficient to avoid blockage of the
ports. Densimetric Froude number
FD2.1/(9.810.0260.175)0.5
9.9,
y 0 /Dp15/0.17585.7.
From Fig. 15.12, for y 0 /Dp85.7 and FD9.9,
w/2Dp15,
w 2 15 0.1756m.
The diffuser length 6 10 60 m.
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670 COASTAL ENGINEERING
