This research presents recent advances on morphodynamic modeling of dunes. Boundary layer separation over gravel fixed dune has been investigated by using particle image velocimetry (PIV) technique. In order to complement and verify the measurements, both ADV and PIV techniques were used. The experiments were focused on the flow pattern based on different dune discharge. The final aim of this research is to improve the knowledge about separation zone. Therefore, the numerical model successfully simulates flow over dune. In order to assess the accuracy of experimental results, a numerical model (SSIIM) was used. The results of this numerical model show that ADV has a weakness point in measuring data 3 cm near to bed, whereas PIV results are more closed to the numerical model.
- Lee angle
- Numerical modeling
- Separation zone
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Adrian, R. J. (1991). Particle imaging techniques for experimental fluid mechanics. Annual Review of Fluid Mechanics, 23, 261–304.
Adrian, R. J. (1997). Dynamic ranges of velocity and spatial resolution of particle image velocimetry. Measurement Science and Technology, 8(12), 1393–1398.
Allen, J. R. L. (1968). The nature and origin of bed form hierarchies. Sedimentology, 10, 161–182.
Best, J. (2005). The fluid dynamics of river dunes: A review and some future research directions. Journal of Geophysical Research, 110 (F04S01), doi:10.1029/2004JF000218.
Best, J., & Kostaschuk, R. A. (2002). An experimental study of turbulent flow over a low-angle dune. Journal of Geophysical Research, 107, 3135–3153.
Buckles, J., Hanratty, T. J., & Adrian, R. J. (1984). Turbulent flow over large amplitude wavy surfaces. Journal of Fluid Mechanics, 140, 27–44.
Carlier, J., & Stanislas, M. (2005). Experimental study of eddy structures in a turbulent boundary layer using particle image velocimetry. Journal of Fluid Mechanics, 535, 143–188.
Carling, P. A., Golz, E., Orr, H. G., & Radecki-Pawlik, A. (2000). The morphodynamics of fluvial sand dunes in the river Rhine, near Mainz Germany. I. Sedimentology and Morphology, 47, 227–252. doi:10.1046/j.1365-3091.2000.00290.x.
Chang, P. K. (1970). Separation of flow. Oxford: Pergamon Press.
Gabel, S.L. (1993) Geometry and kinematics of dunes during steady and unsteady fows in the Calamus River, Nebraska, USA. Sedimentology, 40, 237–269.
Kostaschuk, R., & Villard, P. (1996). Flow and sediment transport over large subaqueous dunes: Fraser river, Canada. Sedimentology, 43, 849–863.
Kostaschuk, R. & J. Best (2004). The response of sand dunes to variations in tidal flow and sediment transport: Fraser Estuary, Canada. In: S. J. M. H. Hulscher, T. Garlan, & D. Idier (Eds.), Proceedings of the 2nd International Workshop on Marine Sandwave and River Dune Dynamics, (pp. 849–863). The Netherlands: University of Twente and SHOM, Enschede 1–2 April.
Motamedi,A. Afzalimehr, H. and Zenz, G. (2011) “Separation Zone and Morphodynamic Evaluation of Course Dunes using a process based 3D numerical model”, European Journal of Scientific Research, ISSN 1450-216x vol.62 No.3, pp. 380–388
Olsen, N.R.B. (2011). A three-dimensional numerical model for simulate of sediment movements in water intakes with multiblock option. Users`s Manual, by Nils Reidar B. Olsen, Department of Hydraulic and Environmental Engineering, The Norwegian University of Science and Technology.
Roden, J. E. (1998). The sedimentology and dynamics of Mega-Dunes, Jamuna River, Bangladesh PhD thesis, Department of Earth Sciences and School of Geography, University of Leeds, p. 310.
Sanderson H.C., and Lockett, F.P.J., (1983) “Flume Experiments On Bedforms and Structures at the Dune-Plane Bed Transition,” Spec. Publs, Int. Assoc. Sedimentologists, vol. 6, pp. 49–58.
Simons, D. B., & Richardson, E. V. (1963). Forms of bed roughness in alluvial channels. Transactions American Society of Civil Engineers, 128(1), 284–323.
Soloff, S., Adrian, R., & Liu, Z. C. (1997). Distortion compensation for generalized stereoscopic particle image velocimetry. Measurement Science Technology, 8, 1441–1454.
Westerweel, J. (1997). Fundamentals of digital particle image velocimetry. Measurement Science Technology, 8(12), 1379–1392.
Wilbers, A. W. E., & Ten Brinke, W. B. M. (2003). The response of subaqueous dunes to floods in sand and gravel bed reaches of the Dutch Rhine. Sedimentology, 50, 1013–1034. doi:10.1046/j.1365-3091.2003.00585.x.
Willert, C. (1997). Stereoscopic digital particle image velocimetry for applications in wind tunnel flows. Measurement Science Technology, 8, 1465–1479.
First, the author is grateful to Prof. Gerald Zenz for his kind support of this research in the Institute of Hydraulic Engineering and Water Resource Management, Graz university of Technology, Austria.
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Motamedi, A., Afzalimehr, H., Harb, G., Galoie, M. (2014). Particle Image Velocimetry (PIV) Measurement and Numerical Modeling of Flow Over Gravel Dune. In: Gourbesville, P., Cunge, J., Caignaert, G. (eds) Advances in Hydroinformatics. Springer Hydrogeology. Springer, Singapore. https://doi.org/10.1007/978-981-4451-42-0_43
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