Abstract
Scale relationships for physical modelling of sand bed river channels are derived using friction factor equations that take into account the form drag caused by sand waves such as dunes and anti-dunes. An interesting aspect of the present derivation is that the friction factor equations developed by different investigators using different set of characteristics parameters result in identical scaling laws for dune regime and two out of three equations adopted for the present derivation show that the scaling laws applicable to dune regime are also valid for anti-dune regime.
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References
Krishnappan, B. G. 1985. Modelling of unsteady flows in alluvial streams. Journal of Hydraulic Engineering, ASCE, Vol III, No. 2, 257–266.
Yalin, M. S. 1971. Theory of Hydraulic Models. Macmillan Publishing Co.
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© 1990 Kluwer Academic Publishers
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Krishnappan, B.G. (1990). Model Scales for Sand Bed Channels. In: Shen, H.W. (eds) Movable Bed Physical Models. NATO ASI Series, vol 312. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2081-1_7
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DOI: https://doi.org/10.1007/978-94-009-2081-1_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-7434-6
Online ISBN: 978-94-009-2081-1
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