Summary
The simulation of the natural process of saltation in a wind tunnel is considered. The pioneering interactive boundary-layer analysis of Owen and Gillette [11] concluded that an independence Froude number criterion did apply to the problem and they estimate, based on wind-tunnel Froude number data ranging from 35 to 80, an independence Froude number value of about 20 for saltating flows to be free of facility constraints imposed on the saltation. The present experimental flows had Froude numbers ranging from about 6 to 1000. Analysis of friction speed variation as a function of downstream position suggests a more conservative critical Froude number value of 10 be used. Also, there appears to be an additional requirement, for most of our data, that tunnel’s downstream length-to-heigt ratio be greater than 5. Therefore, a maximum Froude number of 10 and minimum tunnel length-to-height ratio of 5 is suggested to insure accurate saltation tunnel simulation.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Bagnold, B. A.: The physics of blown sand and desert dunes. London: Methuen (1941).
Coles, D.: The law of the wake in turbulent boundary layer. J. Fluid Mech. 1, 191–226 (1956).
Greeley, R., Iversen, J. D.: Wind as a geologic process on Earth, Mars, Venus, and Titan. Cambridge: Cambridge University Press, p. 100 (1985).
Greeley, R., White, B. R., Pollack, J. B., Iversen, J. D., Leach, R. N.: Dust storms on Mars: considerations and simulations. In: Desert dust: origin, characteristics, and effect on man. (Perve, T., ed.) Special on Geological Society of America, (1981).
Iversen, I. D.: Saltation in the wind tunnel. Unpublished manuscript, (1988).
Kawamura, R.: Study on sand movement by wind (in Japanese). Institute of Science and Technology, Tokyo University, Tokyo, Report 5, 95–112, (1951).
Leach, R. N.: Private communication, (1984).
Mounla, H.: Wind-tunnel measurements of mass transport and velocity profiles in saltating turbulent boundary layers. Master of Science Thesis, University of California, Davis (1989).
Nalpanis, P.: Saltating and suspended particles over flat and sloping. I I. Experiments and numerical simulation. Proceedings on International Workshop on the Physics of Blown. University of Aarhus, vol. I, (1985), pp. 37–66.
Owen, P. R.: Saltation of uniform grains in air. J. Fluid Mech. 20, 225–242 (1964).
Owen, P. R., Gillette, D.: Wind tunnel constraint on saltation. Proceedings on International Workshop on the Physics of Blown Sand. University of Aarhus, vol. 2. (1985), pp. 253–269.
White, B. R.: Soil transport by winds on Mars. J. Geophys. Res. 84, B8, 4643–4651 (1979).
White, B. R.: Low-Reynolds-number turbulent boundary layers. J. Fluid Engng. 103, 624–630 (1981).
White, B. R.: Two-phase measurements of saltating turbulent boundary layer flow. Int. J. Multiphase Flow 5, 459–473 (1982).
White, B. R.: Particle dynamics in two-phase flows. Chapter 8 of Encyclopedia of fluid dynamics. Houston, Texas: Gulf Publishing Co., (1986) pp. 239–282.
White, Frank M.: Fluid mechanics, 2nd ed. McGraw-Hill (1986), p. 398.
Zingg, A. W.: Wind tunnel studies of the movement of sedimentary material. Proceedings of 5th Hydraulic Conference, Bulletin 24, 111–135 (1953).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1991 Springer-Verlag Wien
About this paper
Cite this paper
White, B.R., Mounla, H. (1991). An experimental study of Froude number effect on wind-tunnel saltation. In: Barndorff-Nielsen, O.E., Willetts, B.B. (eds) Aeolian Grain Transport 1. Acta Mechanica Supplementum, vol 1. Springer, Vienna. https://doi.org/10.1007/978-3-7091-6706-9_9
Download citation
DOI: https://doi.org/10.1007/978-3-7091-6706-9_9
Publisher Name: Springer, Vienna
Print ISBN: 978-3-211-82269-2
Online ISBN: 978-3-7091-6706-9
eBook Packages: Springer Book Archive