Effects of sediment concentration on lateral distribution of water velocity in U-channel

Zhang Yaozhe; Wang Yalin; Wang Wen′e

Volume 28 Issue 12

Jun. 2012

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Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE) > 2012 > 28(12): 134-139.

Zhang Yaozhe, Wang Yalin, Wang Wen′e. Effects of sediment concentration on lateral distribution of water velocity in U-channel[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2012, 28(12): 134-139.

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Effects of sediment concentration on lateral distribution of water velocity in U-channel

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Received Date: October 27, 2011
Revised Date: May 23, 2012
Published Date: June 14, 2012

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Abstract

Abstract

Effects of change of sediment concentration on lateral velocity distribution in U-Channel if important to theoretically perfect velocity distribution of sediment-laden flow and study on water and sediment movement in channel. Introducing index formula for velocity distribution, changes of the coefficient k, z of index formula when the sediment concentration is 500-1.12 kg/m3 in flow were investigated by the flume experiments in U-Channel, illustrating that lateral velocity of sediment-laden flow follows index formula of velocity distribution in U-Channel. In the case of s<300 g/m3, k, z increased linearly and slowly with sediment concentration increasing, and for s300 kg/m3, changes of k, z was from slowly increasing to sharply increasing. It is observed that when sediment concentration s 50 g/m3, the center of U-channel appeared core area, and the core area broadens as increasing of sediment concentration.
- hydraulics,
- flow velocity,
- sediments,
- U-channels,
- sediment-laden flow

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References

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