Study on the Mechanism of the Position Adjustable Rotors for Sediment Deposition Reduction

For to reduce and protect the sediment deposition at downstream river course under the tide gates, the position adjustable rotors for sediment deposition reduction is designed. This paper through the physical experiment study on the flow characteristics by the rotor disturb at the condition of the steady uniform flow in the rectangle open channel. The test shows through fluent actuation the rotor revolving, which will strengthen the flow turbulence intensity. The maximum value of the flow turbulence intensity increased 2∼4 times within 5 times blade length and 0.1