Low‐Temperature Effects on Flow in Sand‐Bed Streams
Publication: Journal of Hydraulic Engineering
Volume 110, Issue 2
Abstract
Laboratory experiments were performed in a 40‐ft long, 2‐ft wide, 1‐ft deep tilting flume to elucidate the effects of temperature variations on the flow and sediment‐transport characteristics of streams with beds of fine sand ( in these experiments). Nearly constant depth was maintained with three different constant discharges, and temperatures were varied from approximately 30° C to near 0° C. In the two series of experiments at higher velocities and Froude numbers, temperature reductions produced major increases in sediment discharge and uniformity of concentration distributions and smaller, but still significant, increases in friction factor and bed‐form height. An analysis of the experimental results within the framework of a theoretical sediment‐transport model revealed that the increased sediment discharge with decreasing water temperature in flows carrying significant amounts of suspended sediment are caused by increases in both bed‐layer sediment concentration and the uniformity of the concentration profiles. The sediment discharges of low‐velocity flows, which were just above the threshold of sediment motion, were not significantly affected by water temperature. It was concluded that temperature affects the near‐bed concentration only if the bed‐layer Reynolds number (based on bed‐layer thickness) is greater than about 20.
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References
1.
Ashton, G. D., and Kennedy, J. F., “Ripples on Underside of River Ice Covers,” Journal of the Hydraulics Division, ASCE, Vol. 98, No. HY9, Sept., 1972, pp. 1603–1624.
2.
Colby, B. R., and Scott, C. H., “Effects of Water Temperature on the Discharge of Bed‐material Sediment Transport in Alluvial Channels,” Professional Paper 462‐G, U.S. Geological Survey, 1965.
3.
Engelund, F., and Fredsøe, J., “Transition from Dunes to Plane Bed in Alluvial Channels,” Series Paper 4, Institute of Hydrodynamics and Hydraulic Engineering, Technical University of Denmark, Lyngby, 1974.
4.
Franco, J. J., “Effect of Water Temperatures on Bed Load Movement,” Journal of Waterways and Harbors Division, ASCE, Vol. 89, No. WW3, Aug., 1968, pp. 343–352.
5.
Ho, Pang Yung, “Abhaengigkeit der Geschiebebewegung von der Kornform und der Temperatur,” (Dependence of Bed‐Load Movement on the Grain Shape and the Temperature), Mitteilungen der Preussischen Versuchsanstalt fuer Wasser‐, Erd, und Schiffbau, Berlin, Germany, Vol. 39, 1939.
6.
Hubbel, D. W., and Al‐Shaikh Ali, K. S., “Qualitative Effects of Temperature on Flow Phenomena in Alluvial Channels,” Professional Paper 424‐D, U.S. Geological Survey, 1961.
7.
Karim, M. F., and Kennedy, J. F., “Computer‐Based Predictors for Sediment Discharge and Friction Factor of Alluvial Streams,” Iowa Institute of Hydraulic Research Report No. 242, Dec., 1981, Univ. of Iowa, Iowa City, Iowa, 1981.
8.
Lane, E. W., Carlson, E. J., and Hansen, O. S., “Low Temperature Increase in Sediment Transportation in Colorado River,” Civil Engr., Vol. 19, 1949, pp. 619–621.
9.
Straub, L. G., “Effect of Water Temperature on Suspended Sediment Load in an Alluvial River,” IAHR, Proceedings of the Sixth General Meeting, Vol. 4, 1955.
10.
Straub, L. G., Anderson, A. G., and Flammer, G. H., “Experiments on the Influence of Temperature on the Sediment Load,” M.R.D. Sediment Series, No. 10, U.S. Army Corps of Engineers, Missouri River Division, Omaha, Neb., 1958.
11.
Taylor, B. D., and Vanoni, V. A., “Temperature Effects in Low‐Transport, Flat‐Bed Flows,” Journal of the Hydraulics Division, ASCE, Vol. 98, No. HY8, Aug., 1972, pp. 1427–1445.
12.
United States Army Corps of Engineers, “Missouri River Channel Regime Studies,” MRD Sediment Series, No. 13, U.S. Army Corps of Engineers, Missouri River Division, Omaha, Neb., 1969.
13.
Vanoni, V. A., Sedimentation Engineering, ASCE Manual No. 54, 1975.
14.
Veiga da Cunha, L., “The Influence of Water Temperature on the Roughness of Alluvial Flows,” Memoria No. 437, Laboratorio Nacional de Engenharia Civil, Lisbon, 1974.
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Copyright © 1984 ASCE.
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Published online: Feb 1, 1984
Published in print: Feb 1984
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