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Some Effects of Suspended Sediment on Flow Characteristics

Vanoni, Vito A. (1953) Some Effects of Suspended Sediment on Flow Characteristics. In: Proceedings of the Fifth Hydraulics Conference. University of Iowa Studies in Engineering. No.34. State University of Iowa , Iowa City, IA, pp. 137-158.

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Despite the steady advance in our knowledge of the mechanics of sediment transportation in the last two decades, there is still no theory that is completely satisfactory for engineering purposes. With present theories it is not possible accurately to predict the load under equilibrium conditions, and problems concerned with non-equilibrium conditions can hardly be treated at all because of their extreme difficulty. For instance, the elementary aspect of resistance to flow of a sediment-carrying stream is complicated by the fact that not only does the boundary configuration change with sediment transportation rate, but so does the internal turbulence, momentum transfer, and hence the shear. Once it is realized how long it has taken to bring the much simpler problem of resistance of clear fluids to the present state of knowledge, it is not surprising that progress on the sediment problem is not more rapid. The writer believes that progress with the transport problem will be made by studying the effects of sediment on the flow characteristics, since ultimately transport must be expressed in terms of the flow parameters. Accordingly, the present paper will attempt to clarify the nature of some of the effects of sediment on the transporting flows. Some unpublished data will be introduced and discussed along with published results.

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Hydrodynamics Laboratory109
Series Name:University of Iowa Studies in Engineering
Issue or Number:34
Record Number:CaltechAUTHORS:20140902-161255719
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49158
Deposited On:03 Sep 2014 16:24
Last Modified:03 Oct 2019 07:11

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