Determine the hydraulic radius of the channel if the full supply discharge is 15 m³/sec and silt factor is 0.323 mm.
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1. Lacey’s Regime TheoryLacey’s Regime Theory Gerald Lacey -- 1930 Lacey followed Lindley’s hypothesis: “dimensions and slope of a channel to carry a given discharge and silt load in easily erodable soil are uniquily determined by nature”. According to Lacey: “Silt is kept in suspension by the vertical component of eddies generated at all points of forces normal to the wetted perimeter”. Regime Channel “A channel is said to in regime, if there is neither silting nor scouring”.
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Determine the hydraulic radius of the channel if the full supply discharge is 15 m³/sec and silt factor is 0.323 mm.
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