Sediment Transport under Saltation Regime in Turbulent Flow Part B: Sensitivity Analysis of Important Parameters of the Model

Document Type : Research Article


1 Ph.D., Faculty of Civil and Environmental Eng., Tarbiat Modares University, Tehran, Iran

2 Professor, Water Engineering Research Center, Tarbiat Modares University, Tehran, Iran

3 Professor, Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, New York, USA


In the present research, the developed 3D Eulerian-Lagrangian model of the sediment transport in Part A of this series is used to predict the effects of the bed-roughness height, water temperature (viscosity) and density of sediment grains. The selected parameters for the analyses are important both for sediment transport hydraulics and also uncertainties of experimental data. The results indicated that increasing bed-roughness height causes decrease in the saltation characteristics and consequently bed-load transport rate. The effects of water temperature (viscosity) are significant in the range of sand size, and it is necessary to keep it in the control for reducing uncertainties of experimental data. The sediment density has significant effects in both sand and gravel ranges, and thus the use of grains with different density compared to natural sediment can impose significant effects on experimental results.


براتی، ر.، صالحی نیشابوری س. ع. ا. و احمدی، گ. (1396). "انتقال بار بستر تحت رژیم پرش رسوبات در جریان آشفته بخش اول: توسعه مدل" مجله هیدرولیک، همین شماره.
مهدیزاده، س. س. (1387). "بررسی آزمایشگاهی حرکت ذره رسوبی در نزدیکی بستر با استفاده از دستگاه PIV"، پایان‌نامه کارشناسی ارشد، دانشگاه تربیت مدرس، تهران، ایران.
Abbott, J. E., and Francis, J. R. D. (1977). “Saltation and suspension trajectories of solid grains in a water stream.” Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, 284(1321), 225-254.
Akbari, G. H., and Barati, R. (2012). Comprehensive analysis of flooding in unmanaged catchments. Proceedings of the ICE-Water Management, 165(4), 229-238.
Barati, R., Salehi Neyshabouri, S. A. A. and G. Ahmadi, (2014a) “Development of a 3D Lagrangian model for numerical simulation of initiation of motion of sediment particles” The 11th International Conference on Coasts, Ports and Marine Structures (ICOPMAS 2014), Tehran, Iran, 24-26, 215–218.
Barati, R., Salehi Neyshabouri, S. A. A. and G. Ahmadi, (2015a) “On the threshold of motion of sediment grains: Hydrodynamic forces effects” The Sixth Jordanian International Civil Engineering Conference, Jordan.
Barati, R., Salehi Neyshabouri, S. A. A. and G. Ahmadi, (2014b). “Numerical simulation of the sediment transport in the saltation regime” River Flow 2014 - the 7th International Conference on Fluvial Hydraulics –EPFL, Lausanne, Switzerland.
Barati, R., Salehi Neyshabouri, S. A. A., and Ahmadi, G. (2015b). “A 3D Eulerian-Lagrangian model for the motion of the multiple non-cohesive sediment grains in water” 10th International Congress on Civil Engineering, University of Tabriz, Tabriz, Iran.
Cheng, N. S. (2015). “Representative grain size and equivalent roughness height of a sediment bed”. Journal of Hydraulic Engineering, 142(1), 06015016(1-4).
Cheng, N. S., Nguyen, H. T., Zhao, K., and Tang, X. (2011). “Evaluation of flow resistance in smooth rectangular open channels with modified Prandtl friction law.” Journal of Hydraulic Engineering, 137(4), 441-450.
Derx, J., Farnleitner, A. H., Zessner, M., Pang, L., Schijven, J., and Blaschke, A. P. (2012). “Evaluating the effect of temperature induced water viscosity and density fluctuations on virus and DOC removal during river bank filtration–a scenario analysis.” River Systems, 20(3-4), 169-184.
Francis, J. R. D. (1973). “Experiments on the motion of solitary grains along the bed of a water-stream.” In Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, The Royal Society, 332(1591), 443-471.
García, M. H. (Ed.). (2008). Sedimentation engineering: processes, measurements, modeling, and practice (No. 110). ASCE Publications.
Isaak, D. J., Wollrab, S., Horan, D., and Chandler, G. (2012). “Climate change effects on stream and river temperatures across the northwest US from 1980–2009 and implications for salmonid fishes.” Climatic Change, 113(2), 499-524.
Marszelewski, W., and Pius, B. (2015). “Long-term changes in temperature of river waters in the transitional zone of the temperate climate: a case study of Polish rivers.” Hydrological Sciences Journal, 61(8), 1430-1442.
Morvan, H., Knight, D., Wright, N., Tang, X., and Crossley, A. (2008). “The concept of roughness in fluvial hydraulics and its formulation in 1D, 2D and 3D numerical simulation models”. Journal of Hydraulic Research, 46(2), 191-208.
Nasrollahi, A., Salehi Neyshabouri, S. A. A., Ahmadi, G., and Namin, M. M. (2008). Numerical simulation of particle saltation process. Particulate Science and Technology, 26(6), 529-550.
Niño, Y., García, M., and Ayala, L. (1994). Gravel saltation: 1. Experiments. Water resources research, 30(6), 1907-1914.
Oberkampf, W. L., Sindir, M. M., and Conlisk, A. T. (1998). Guide for the verification and validation of computational fluid dynamics simulations. American Institute of Aeronautics and Astronautics (AIAA).
Orr, H. G., Simpson, G. L., Clers, S., Watts, G., Hughes, M., Hannaford, J. and Evans, R. (2015). “Detecting changing river temperatures in England and Wales”. Hydrological Processes, 29(5), 752-766.
Piotrowski, A. P., Napiorkowski, M. J., Napiorkowski, J. J., and Osuch, M. (2015). “Comparing various artificial neural network types for water temperature prediction in rivers.” Journal of Hydrology, 529, 302-315.
Ruark, M. D., Niemann, J. D., Greimann, B. P., and Arabi, M. (2011). “Method for assessing impacts of parameter uncertainty in sediment transport modeling applications.” Journal of Hydraulic Engineering, 137(6), 623-636.
Saltelli, A., Ratto, M., Andres, T., Campolongo, F., Cariboni, J., Gatelli, D., and Tarantola, S. (2008). Global sensitivity analysis: the primer. John Wiley & Sons.
Smith, M. W. (2014). Roughness in the earth sciences. Earth-Science Reviews, 136, 202-225.
van Rijn, L. C. (1984). “Sediment transport, part I: bed load transport.” Journal of Hydraulic Engineering, 110(10), 1431-1456.
Webb, B. W., and Walling, D. E. (1985). “Temporal variation of river water temperatures in a Devon river system.” Hydrological Sciences Journal, 30(4), 449-464.
  • Receive Date: 07 December 2015
  • Revise Date: 13 March 2017
  • Accept Date: 18 April 2017
  • First Publish Date: 18 April 2017