Equivalent Roughness of Gravel-Bed Rivers
Publication: Journal of Hydraulic Engineering
Volume 134, Issue 6
Abstract
The relation between the equivalent roughness and different grain size percentiles of the sediment in gravel-bed rivers was determined under the hypothesis that the vertical distribution of the flow velocity follows a logarithmic law. A set of 954 data points was selected from rivers with gravel size sediment or larger, with a nonsinuous alignment and free of vegetation or obstacles. According to the results, the roughness is equivalent to approximately , , and . No correlation was detected between the sediment sorting and the sediment mobility index on one hand and, on the other, the coefficient of proportionality of each grain size percentile.
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References
Ackers, P., and White, W. R. (1973). “Sediment transport: New approach and analysis.” J. Hydr. Div., 99(11), 2041–2060.
Aguirre-Pe, J., and Fuentes, R. (1990). “Resistance to flow in steep rough streams.” J. Hydraul. Eng., 116(11), 1374–1386.
Bathurst, J. C. (1982). “Theoretical aspects of flow resistance.” Gravel-bed rivers, R. D. Hey, J. C. Bathurst, and C. R. Thorne, eds., Wiley, Chichester, U.K., 82–108.
Bathurst, J. C. (1985). “Flow resistance estimation in mountain rivers.” J. Hydraul. Eng., 111(4), 625–643.
Bray, D. I. (1979). “Estimating average velocity in gravel-bed rivers.” J. Hydr. Div., 105(9), 1103–1123.
Bray, D. I. (1982). “Flow resistance in gravel-bed rivers.” Gravel-bed rivers, R. D. Hey, J. C. Bathurst, and C. R. Thorne, eds., Wiley, Chichester, U.K., 109–137.
Charlton, F. G., Brown, P. M., and Benson, R. W. (1978). “The hydraulic geometry of some gravel rivers in Britain.” Hydraulics Research Station Rep. No. IT 180, Wallingford, U.K.
Colosimo, C., Copertino, V. A., and Veltri, M. (1988). “Friction factor evaluation in gravel-bed rivers.” J. Hydraul. Eng., 114(8), 861–876.
Griffiths, G. A. (1981). “Flow resistance in coarse gravel bed rivers.” J. Hydr. Div., 107(7), 899–918.
Hey, R. D. (1979). “Flow resistance in gravel-bed rivers.” J. Hydr. Div., 105(4), 365–379.
Hicks, D. M., and Mason, P. D. (1991). “Roughness characteristics of New Zealand rivers,” New Zealand Water Resources Survey, DSIR Marine and Freshwater, Wellington, N.Z.
Jarrett, R. D. (1984). “Hydraulic of high gradient streams.” J. Hydraul. Eng., 110(11), 1519–1539.
Judd, H. E., and Peterson, D. F. (1969). “Hydraulics of large bed elements channels.” Rep. No. PRWG 17-6, Utah Water Research Laboratory, Utah State Univ., Logan, Utah.
Lee, A. J., and Ferguson, R. I. (2002). “Velocity and flow resistance in step-pool streams.” Geomorphology, 46, 59–71.
Leopold, L. B., Wolman, M. G., and Miller, J. P. (1964). Fluvial processes in geomorphology, Dover, New York.
Limerinos, J. T. (1970). “Determination of the Manning coefficient from measured bed roughness in natural channels.” Water Supply Paper No.1898-B, U.S. Geological Survey, Washington D.C.
López, R. (2005). “Resistencia al flujo de rios de montaña: Desarrollo de ecuaciones de predicción.” Ph.D. thesis, Univ. of Lleida, Lleida, Spain, in Spanish.
Maresova, I., and Mares, K. (1989). “Flow resistance of channel bed of submountainous rivers.” Technical Papers of the Faculty of Civil Engineering, Series V, Vol. 9, Technical Univ. of Prague, Prague, Czechoslovakia, 269–305.
Millar, R. G. (1999). “Grain and form resistance in gravel-bed rivers.” J. Hydraul. Res., 37(3), 303–312.
Smart, G. M., Duncan, M. J., and Walsh, J. M. (2002). “Relatively rough flow resistance equations.” J. Hydraul. Eng., 128(6), 568–578.
Song, T., Chiew, Y. M., and Chin, C. O. (1998). “Effect of bed-load movement on flow friction factor.” J. Hydraul. Eng., 124(2), 165–175.
Whiting, P. J., and Dietrich, W. E. (1990). “Boundary shear stress and roughness over mobile alluvial beds.” J. Hydraul. Eng., 116(12), 1495–1511.
Wolman, M. G. (1955). “The natural channel of Brandywine Creek, Pennsylvania.” Geological Survey Professional Paper 271, U.S. Geological Survey, Washington, D.C.
Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 134 • Issue 6 • June 2008
Pages: 847 - 851
Copyright
© 2008 ASCE.
History
Received: Jun 7, 2006
Accepted: Apr 12, 2007
Published online: Jun 1, 2008
Published in print: Jun 2008
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