Incipient motion of sediment particles in the presence of bed forms under decelerating and accelerating flows

Afzalimehr, H., Anctil, F., 2000. Accelerating shear velocity in gravel-bed channels. Hydrological Sciences Journal, 45, 1, 113–124.10.1080/02626660009492309Search in Google Scholar

Afzalimehr, H., Dey, S., Rasoulianfar, P., 2007. Influence of decelerating flow on incipient motion of a gravel-bed stream. Sadhana, 32, 5, 545–559.10.1007/s12046-007-0041-7Search in Google Scholar

Afzalimehr, H., Rennie, C.D., 2009. Determination of bed shear stress in gravel-bed rivers using boundary-layer parameters. Hydrological Sciences Journal, 54, 1, 147–159.10.1623/hysj.54.1.147Search in Google Scholar

Afzalimehr, H., Maddahi, M.R., Sui, J., 2017. Bedform characteristics in a gravel-bed river. Journal of Hydrology and Hydromechanics, 65, 4, 366–377.10.1515/johh-2017-0023Search in Google Scholar

Bolhassani, R., Afzalimehr, H., Dey, S., 2015. Effects of relative submergence and bed slope on sediment incipient motion under decelerating flows. Journal of Hydrology and Hydromechanics, 63, 4, 295–302.10.1515/johh-2015-0039Search in Google Scholar

Buffington, J.M., Montgomery, D.R., 1997. A systematic analysis of eight decades of incipient motion studies, with special reference to gravel-bedded rivers. Water Resources Research, 33, 8, 1993–2029.10.1029/96WR03190Search in Google Scholar

Chartrand, S.M., Jellinek, A.M., Hassan, M.A., Ferrer-Boix, C., 2018. Morphodynamics of a width-variable gravel bed stream: New insights on pool-riffle formation from physical experiments. Journal of Geophysical Research: Earth Surface, 123, 11, 2735–2766.Search in Google Scholar

Chiew, Y.M., Parker, G., 1994. Incipient sediment motion on non-horizontal slopes. Journal of Hydraulic Research, 32, 5, 649–660.10.1080/00221689409498706Search in Google Scholar

Church, M., Hassan, M.A., 2005. Upland gravel-bed rivers with low sediment transport. Developments in Earth Surface Processes, 7, 141–168.10.1016/S0928-2025(05)80015-XSearch in Google Scholar

Dey, S., Ali, S.Z., 2019. Bed sediment entrainment by stream-flow: State of the science. Sedimentology, 66, 5, 1449–1485.10.1111/sed.12566Search in Google Scholar

Dey, S., 2003. Threshold of sediment motion on combined transverse and longitudinal sloping beds. Journal of Hydraulic Research, 41, 4, 405–415.10.1080/00221680309499985Search in Google Scholar

Dey, S., 2014. Fluvial Hydrodynamics. Springer, Berlin.10.1007/978-3-642-19062-9Search in Google Scholar

Dey, S., Debnath, K., 2000. Influence of streamwise bed slope on sediment threshold under stream flow. Journal of Irrigation and Drainage Engineering, 126, 4, 255–263.10.1061/(ASCE)0733-9437(2000)126:4(255)Search in Google Scholar

Emadzadeh, A., Chiew, Y.M., Afzalimehr, H., 2010. Effect of accelerating and decelerating flows on incipient motion in sand bed streams. Advances in Water Resources, 33, 9, 1094–1104.10.1016/j.advwatres.2010.06.014Search in Google Scholar

Fazel Najafabadi, E., Afzalimehr, H., Rowiński, P.M., 2018. Flow structure through a fluvial pool-riffle sequence–Case study. Journal of Hydro-environment Research, 19, 1–15.10.1016/j.jher.2018.01.001Search in Google Scholar

Garde, R.J., 1970. Initiation of Motion on a hydrody-namically rough surface – Critical velocity approach. Water and Energy International, 27, 3, 271–282.Search in Google Scholar

Gilbert, G.K., 1914. The transportation of debris by running water, (No. 86). US Government Printing Office.10.3133/pp86Search in Google Scholar

Goncharov, V.N., 1964. Dynamics of Channel Flow. Israel Program for Scientific Translations.Search in Google Scholar

Hassan, M.A., Saletti, M., Johnson, J.P., Ferrer-Boix, C., Venditti, J.G., Church, M., 2020. Experimental insights into the threshold of motion in alluvial channels: Sediment supply and streambed state. Journal of Geophysical Research: Earth Surface, 125, 12, e2020JF005736.10.1029/2020JF005736Search in Google Scholar

Hassan, M.A., Woodsmith, R.D., 2004. Bed load transport in an obstruction-formed pool in a forest, gravel-bed stream. Geomorphology, 58, 1–4, 203–221.10.1016/j.geomorph.2003.07.006Search in Google Scholar

Keller, E.A., 1971. Areal sorting of bed-load material: the hypothesis of velocity reversal. Geological Society of America Bulletin, 82, 3, 753–756.10.1130/0016-7606(1971)82[753:ASOBMT]2.0.CO;2Search in Google Scholar

Kironoto, B.A., Graf, W.H., Reynolds, 1995. Turbulence characteristics in rough non-uniform open-channel flow. Proceedings of the Institution of Civil Engineers - Water Maritime and Energy, 112, 4, 336–348.10.1680/iwtme.1995.28114Search in Google Scholar

Lamb, M.P., Dietrich, W.E., Venditti, J.G., 2008. Is the critical Shields stress for incipient sediment motion dependent on channel-bed slope? Journal of Geophysical Research: Earth Surface, 113, F2.10.1029/2007JF000831Search in Google Scholar

Luque, R.F., Van Beek, R., 1976. Erosion and transport of bed-load sediment. Journal of Hydraulic Research, 14, 2, 127–144.10.1080/00221687609499677Search in Google Scholar

MacVicar, B.J., Rennie, C.D., 2012. Flow and turbulence redistribution in a straight artificial pool. Water Resources Research, 48, 2.10.1029/2010WR009374Search in Google Scholar

MacVicar, B.J., Roy, A., 2007. Hydrodynamics of a forced riffle pool in a gravel bed river: 1. Mean velocity and turbulence intensity. Water Resources Research, 43, 12.10.1029/2006WR005272Search in Google Scholar

Motamedi, A., Afzalimehr, H., Singh, V.J., 2010. Evaluation of a novel approach to determine the critical Shields stress. Journal of Hydrologic Engineering ASCE, 15, 11, 892–900.10.1061/(ASCE)HE.1943-5584.0000266Search in Google Scholar

Neill, C.R., 1968. Note on initial movement of coarse uniform bed-material. Journal of Hydraulic Research, 6, 2, 173–176.10.1080/00221686809500228Search in Google Scholar

Shahmohammadi, R., Afzalimehr, H., Sui, J., 2018. Impacts of turbulent flow over a channel bed with a vegetation patch on the incipient motion of sediment. Canadian Journal of Civil Engineering, 45, 9, 803–816.10.1139/cjce-2017-0474Search in Google Scholar

Shields, A., 1936. Application of similarity principles and turbulence research to bed-load movement. California Institute of Technology, Pasadena, CA. (Unpublished). https://resolver.caltech.edu/CaltechKHR:HydroLabpub167Search in Google Scholar

Wiberg, P.L., Smith, J.D., 1987. Calculations of the critical shear stress for motion of uniform and heterogeneous sediments. Water Resources Research, 23, 8, 1471–1480.10.1029/WR023i008p01471Search in Google Scholar