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1

Khazratov, A. N., O. Sh Bazarov, A. R. Jumayev, F. F. Bobomurodov, and N. Z. Mamatov. "Influence of cohesion strength in cohesive soils onchannel bed erosion." E3S Web of Conferences 410 (2023): 05018. http://dx.doi.org/10.1051/e3sconf/202341005018.

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The results of experimental studies on the mechanical properties of cohesive soils associated with the use in the study of the erosion process are presented. The influence of the cohesion strength of cohesive soil on erosion is described. The relationship between the erosionflow velocities and cohesion strength has been obtained.
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2

Gong, Mingze, Sivar Azadi, Adrien Gans, Philippe Gondret, and Alban Sauret. "Erosion of a cohesive granular material by an impinging turbulent jet." EPJ Web of Conferences 249 (2021): 08011. http://dx.doi.org/10.1051/epjconf/202124908011.

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The erosion of a cohesive soil by an impinging turbulent jet is observed, for instance, during the landing of a spacecraft or involved in the so-called jet erosion test. To provide a quantitative understanding of this situation for cohesive soils, we perform experiments using a model cohesion controlled granular material that allows us to finely tune the cohesion between particles while keeping the other properties constant. We investigate the response of this cohesive granular bed when subjected to an impinging normal turbulent jet. We characterize experimentally the effects of the cohesion o
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3

Glasbergen, K., M. Stone, B. Krishnappan, J. Dixon, and U. Silins. "The effect of coarse gravel on cohesive sediment entrapment in an annular flume." Proceedings of the International Association of Hydrological Sciences 367 (March 3, 2015): 157–62. http://dx.doi.org/10.5194/piahs-367-157-2015.

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Abstract. While cohesive sediment generally represents a small fraction (<0.5%) of the total sediment mass stored in gravel-bed rivers, it can strongly influence physical and biogeochemical processes in the hyporheic zone and alter aquatic habitat. This research was conducted to examine mechanisms governing the interaction of cohesive sediments with gravel beds in the Elbow River, Alberta, Canada. A series of erosion and deposition experiments with and without a gravel bed were conducted in a 5-m diameter annular flume. The critical shear stress for deposition and erosion of cohesive sedime
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4

Borovkov, V. S., and M. A. Volynov. "RIVER BED EROSION IN COHESIVE SOILS." Vestnik MGSU, no. 4 (April 2013): 143–49. http://dx.doi.org/10.22227/1997-0935.2013.4.143-149.

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5

Geng, Tiesuo, Shuanghua Chen, Liuqun Zhao, and Zhe Zhang. "Research on Bonding Performance of Anchorage Caisson Foundation with Different Contact Surfaces and Grouting Bed." Buildings 11, no. 8 (2021): 365. http://dx.doi.org/10.3390/buildings11080365.

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In view of the first domestic offshore suspension bridge with caisson foundation, this paper mainly studies the bonding properties between underwater pre-filled aggregate grouting bed and anchorage caisson foundation. Through the test, the cohesive force of adding ordinary concrete between the anchorage caisson foundation and the grouting bed, the cohesive force of adding paper base asphalt felt between the anchorage caisson foundation and the grouting bed, and the cohesive force of adding geotextile between the anchorage caisson foundation and the grouting bed are measured, respectively. When
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6

Berlamont, Jean E., and Hilde M. Torfs. "Modeling (partly) cohesive sediment transport in sewer systems." Water Science and Technology 33, no. 9 (1996): 171–78. http://dx.doi.org/10.2166/wst.1996.0204.

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Although the basic mechanisms of sediment transport in sewers are the same as in rivers, it is not necessarily appropriate to use the many models that have been developed for sediment transport in rivers also in sewers. Different reasons are: 1) sewer sediments are often mixtures of cohesive and non cohesive material, and the bed is often stratified; 2) due to consolidation of the (partly cohesive) bed material, the erosion resistance of the bed may vary with time; 3) the flow conditions in sewers are usually unsteady, which is not accounted for in the classical sediment transport models; 4) e
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7

Mosquera, R., V. Groposo, and F. Pedocchi. "Acoustic measurements of a liquefied cohesive sediment bed under waves." Advances in Geosciences 39 (April 1, 2014): 1–7. http://dx.doi.org/10.5194/adgeo-39-1-2014.

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Abstract. In this article the response of a cohesive sediment deposit under the action of water waves is studied with the help of laboratory experiments and an analytical model. Under the same regular wave condition three different bed responses were observed depending on the degree of consolidation of the deposit: no bed motion, bed motion of the upper layer after the action of the first waves, and massive bed motion after several waves. The kinematic of the upper 3 cm of the deposit were measured with an ultrasound acoustic profiler, while the pore-water pressure inside the bed was simultane
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8

Wang, Rui, and Guoliang Yu. "Experimental study on incipient condition of fluidized bed sediment in oscillatory." E3S Web of Conferences 81 (2019): 01014. http://dx.doi.org/10.1051/e3sconf/20198101014.

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In this paper, the incipient condition of the fluidized bed sediment with different sizes and water contents were experimentally studied in an os- cillatory tunnel made of acrylic boards. One-hundred experimental runs were performed with sediment samples by varying the yield stress to determine the relationship between the critical condition of incipient motion and the rheolog- ical properties of the cohesive sediments. Experimental results showed that the yield stress of the bed sediment decreased as the fluidization level increased. When the yield stress is no longer changed, the bed sedimen
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9

Sherwood, Christopher R., Alfredo L. Aretxabaleta, Courtney K. Harris, J. Paul Rinehimer, Romaric Verney, and Bénédicte Ferré. "Cohesive and mixed sediment in the Regional Ocean Modeling System (ROMS v3.6) implemented in the Coupled Ocean–Atmosphere–Wave–Sediment Transport Modeling System (COAWST r1234)." Geoscientific Model Development 11, no. 5 (2018): 1849–71. http://dx.doi.org/10.5194/gmd-11-1849-2018.

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Abstract. We describe and demonstrate algorithms for treating cohesive and mixed sediment that have been added to the Regional Ocean Modeling System (ROMS version 3.6), as implemented in the Coupled Ocean–Atmosphere–Wave–Sediment Transport Modeling System (COAWST Subversion repository revision 1234). These include the following: floc dynamics (aggregation and disaggregation in the water column); changes in floc characteristics in the seabed; erosion and deposition of cohesive and mixed (combination of cohesive and non-cohesive) sediment; and biodiffusive mixing of bed sediment. These routines
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10

Banasiak, Robert. "Hydraulic performance of sewer pipes with deposited sediments." Water Science and Technology 57, no. 11 (2008): 1743–48. http://dx.doi.org/10.2166/wst.2008.287.

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This paper investigates in-sewer sediment deposit behaviour and its influence on the hydraulic performance of sewer pipes. This evaluation is based on experimental results regarding the mobility of non-cohesive and partly cohesive deposits in a partially full circular pipe. The focus of these tests is on the development of bed forms and friction characteristics. In particular, it is investigated to what extent the bed forms from the non-cohesive and (partly) cohesive sediments affect a sewer's discharge capacity. Based on the laboratory study results and on the existing criteria for sewer desi
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11

Shugar, Daniel, Ray Kostaschuk, Peter Ashmore, Joe Desloges, and Leif Burge. "In situ jet-testing of the erosional resistance of cohesive streambeds." Canadian Journal of Civil Engineering 34, no. 9 (2007): 1192–95. http://dx.doi.org/10.1139/l07-024.

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Fletcher’s Creek is located in an urbanizing basin near Toronto and has a bed and banks composed primarily of cohesive Halton Till. Critical shear stress and an erodibility coefficient for the till were determined using an in situ jet-tester that directs a submerged jet of water perpendicular to the sediment surface. The results from 10 jet-tests indicate that the till has a relatively low critical shear stress and relatively high erodibility coefficient and could be susceptible to bed scour during flood events. Many other streams in southern Ontario have urbanizing watersheds with cohesive ti
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12

Qin, Cuicui, Xuejun Shao, and Yi Xiao. "Secondary Flow Effects on Deposition of Cohesive Sediment in a Meandering Reach of Yangtze River." Water 11, no. 7 (2019): 1444. http://dx.doi.org/10.3390/w11071444.

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Few researches focus on secondary flow effects on bed deformation caused by cohesive sediment deposition in meandering channels of field mega scale. A 2D depth-averaged model is improved by incorporating three submodels to consider different effects of secondary flow and a module for cohesive sediment transport. These models are applied to a meandering reach of Yangtze River to investigate secondary flow effects on cohesive sediment deposition, and a preferable submodel is selected based on the flow simulation results. Sediment simulation results indicate that the improved model predictions ar
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13

Willis, David H., and B. G. Krishnappan. "Numerical modelling of cohesive sediment transport in rivers." Canadian Journal of Civil Engineering 31, no. 5 (2004): 749–58. http://dx.doi.org/10.1139/l04-043.

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Techniques available to practicing civil engineers for numerically modelling cohesive mud in rivers and estuaries are reviewed. Coupled models, treating water and sediment as a single process, remain research tools but are usually not three-dimensional. The decoupled approach, which separates water and sediment computations at each model time step, allows the three-dimensional representation of at least the bed and the use of well-proven, commercial, numerical, hydrodynamic models. Most hydrodynamic models compute sediment transport in suspension but may require modification of the dispersion
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14

Gao, Xiaojing, Qiusheng Wang, Chongbang Xu, and Ruilin Su. "Experimental Study on Critical Shear Stress of Cohesive Soils and Soil Mixtures." Transactions of the ASABE 64, no. 2 (2021): 587–600. http://dx.doi.org/10.13031/trans.14065.

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HighlightsErosion tests were performed to study the critical shear stress of cohesive soils and soil mixtures.Linear relationships were observed between critical shear stress and cohesion of cohesive soils.Mixture critical shear stress relates to noncohesive particle size and cohesive soil erodibility.A formula for calculating the critical shear stress of soil mixtures is proposed and verified.Abstract. The incipient motion of soil is an important engineering property that impacts reservoir sedimentation, stable channel design, river bed degradation, and dam breach. Due to numerous factors inf
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15

Yamanishi, Hiroyuki, Osamu Higashi, Tetsuya Kusuda, and Ryoichi Watanabe. "Scouring of Sloping Cohesive Sediment Bed under Waves." Doboku Gakkai Ronbunshu, no. 607 (1998): 55–67. http://dx.doi.org/10.2208/jscej.1998.607_55.

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16

Tong, Hua, and Hongzhong Li. "Floating internals in fast bed of cohesive particles." Powder Technology 190, no. 3 (2009): 401–9. http://dx.doi.org/10.1016/j.powtec.2008.08.023.

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17

Milburn, David, and B. G. Krishnappan. "Modelling Erosion and Deposition of Cohesive Sediments from Hay River, Northwest Territories, Canada." Hydrology Research 34, no. 1-2 (2003): 125–38. http://dx.doi.org/10.2166/nh.2003.0032.

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A large volume sample of river-bed cohesive sediment and water from Hay River, Northwest Territories, Canada was collected during a spring field program in 2000 as part of a study on under-ice movement of sediment just before breakup. Controlled laboratory experiments were subsequently conducted on the Hay River water/sediments in a rotating annular flume at Burlington, Ontario, Canada to better understand the deposition and erosion processes of cohesive sediment transport. The deposition experiments in the rotating flume confirmed that the Hay River sediment is cohesive and the critical shear
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18

Khassaf, Saleh Issa. "Effect of Cohesive and Non-Cohesive Soils on Equilibrium Scour Depth." Tikrit Journal of Engineering Sciences 14, no. 2 (2007): 73–85. http://dx.doi.org/10.25130/tjes.14.2.04.

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In this research ,the effect of cohesive soils ( clay ) and non –cohesive soils sand on equilibrium scour depth was studied .Experiments were carried out on two types of clay and two types of sand as a bed material using an obstruction ( pier ) to create a local scour. The effect of flow velocity and Froude number on scour depth and the occurrence time of equilibrium scour depth were studied . The results show that for the same conditions, the rate of scour in the clayey soils is less than in sandy soils. Also the time required for occurrence of the maximum scour depth ( equilibrium depth ) in
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19

Geremew, Africa M. "Erosion characteristics and stochastic nature of bed shear stress in underwater mine tailings." Canadian Journal of Civil Engineering 44, no. 6 (2017): 426–40. http://dx.doi.org/10.1139/cjce-2016-0319.

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The erosion of mine tailings was investigated by examining the physical processes during the initiation of motion of the tailings. Erosion experiments were conducted on mine tailings samples and natural soils in a Plexiglas laboratory annular column under 50 cm water cover. Resuspension was introduced with a Teflon stirrer and the bed shear stress was estimated from the measured near-bed velocity field and the pressure change in the boundary layer. Two modes of initiation of motion of cohesive mine tailings that showed cohesive behaviour was noticed: pitting erosion and line erosion and the mo
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20

Mazurek, Kerry A., and Tanvir Hossain. "Scour by jets in cohesionless and cohesive soils." Canadian Journal of Civil Engineering 34, no. 6 (2007): 744–51. http://dx.doi.org/10.1139/l07-005.

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A technique is developed in this paper to unify the methods of analyzing scour by turbulent water jets in cohesionless and cohesive soils. Data from previous studies using circular turbulent impinging jets and circular turbulent wall jets are used to compare the scour in low void ratio cohesive soils to that in uniform sands and gravels. Scour by these jets is related to the dimensionless excess stress on the soil bed. It is seen that this parameter will likely work well for developing a method to predict scour for circular wall jets that is applicable to both materials. However, a circular im
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21

Zhou, Zaiyang, Jianzhong Ge, Dirk Sebastiaan van Maren, Jinghua Gu, Pingxing Ding, and Zhengbing Wang. "Measuring Bed Exchange Properties of Cohesive Sediments Using Tripod Data." Journal of Marine Science and Engineering 10, no. 11 (2022): 1713. http://dx.doi.org/10.3390/jmse10111713.

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The Krone–Partheniades (K-P) framework has been used for decades to quantify and analyze the sediment exchange at a water–bed interface. Measuring the erosion and deposition parameters that are part of this framework requires time-consuming field observations. Additionally, the erosion parameters are measured independently of deposition parameters, while in reality they are coupled. In numerical models applying the K-P framework these parameters are often assumed to be constant in time and mutually independent. In this study, we develop a relatively simple methodology to determine the erosion
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22

Ebisa Fola, Miressa, and Colin D. Rennie. "Downstream Hydraulic Geometry of Clay-Dominated Cohesive Bed Rivers." Journal of Hydraulic Engineering 136, no. 8 (2010): 524–27. http://dx.doi.org/10.1061/(asce)hy.1943-7900.0000199.

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23

Krone, Ray B. "Effects of Bed Structure on Erosion of Cohesive Sediments." Journal of Hydraulic Engineering 125, no. 12 (1999): 1297–301. http://dx.doi.org/10.1061/(asce)0733-9429(1999)125:12(1297).

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24

Aberle, Jochen, Vladimir Nikora, and Roy Walters. "Effects of bed material properties on cohesive sediment erosion." Marine Geology 207, no. 1-4 (2004): 83–93. http://dx.doi.org/10.1016/j.margeo.2004.03.012.

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25

Chaudhuri, Susanta, Santosh Kumar Singh, Koustuv Debnath, and Mrinal K. Manik. "Pier scour within long contraction in cohesive sediment bed." Environmental Fluid Mechanics 18, no. 2 (2017): 417–41. http://dx.doi.org/10.1007/s10652-017-9560-x.

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26

Yang, S. C. "Segregation of cohesive powders in a vibrated granular bed." Chemical Engineering Science 61, no. 18 (2006): 6180–88. http://dx.doi.org/10.1016/j.ces.2006.05.048.

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27

Bosa, Silvia, Marco Petti, and Sara Pascolo. "Numerical Modelling of Cohesive Bank Migration." Water 10, no. 7 (2018): 961. http://dx.doi.org/10.3390/w10070961.

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River morphological evolution is a challenging topic, involving hydrodynamic flow, sediment transport and bank stability. Lowland rivers are often characterized by the coexistence of granular and cohesive material, with significantly different behaviours. This paper presents a bidimensional morphological model to describe the evolution of the lower course of rivers, where there are both granular and cohesive sediments. The hydrodynamic equations are coupled with two advection–diffusion equations, which consider the transport of granular and cohesive suspended sediment concentration separately.
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28

Hamidifar, Hossein, and Mohammad Hossein Omid. "Local scour of cohesive beds downstream of a rigid apron." Canadian Journal of Civil Engineering 44, no. 11 (2017): 935–44. http://dx.doi.org/10.1139/cjce-2016-0398.

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In this paper, the physics of scour hole in a mixed sand–clay bed downstream of an apron is studied experimentally. Seven combinations of sand–clay mixtures including clay contents, Cc, ranging from 0 to 0.4 were used. The results show that Cc = 0.4 can reduce the maximum scour depth, εm, up to about 80% for all the densimetric Froude numbers in the range of the present study. An empirical equation has been proposed for calculation of εm in sand–clay mixtures with the mean error of 0.12. The removal mechanism of sediments from the bed was different based on the Cc. For low clay contents, i.e.,
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29

Güven, Oktay, Joel G. Melville, and John E. Curry. "Analysis of Clear-Water Scour at Bridge Contractions in Cohesive Soils." Transportation Research Record: Journal of the Transportation Research Board 1797, no. 1 (2002): 3–10. http://dx.doi.org/10.3141/1797-01.

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A new, simplified theory for the analysis of the time-dependent development of the depth of scour at bridge contractions in cohesive soils under clear-water conditions is presented. The new theory is an extension of the clear-water scour theory for a long contraction currently used for non-cohesive bed materials. It is based on the “scour rate in cohesive soils” concepts introduced recently by Briaud and his colleagues at Texas A&M University. A description of the simplifying assumptions made in the development of the theory and several applications with different bed soils and flow condit
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30

Koroleva, K. S., and I. I. Potapov. "EVOLUTION OF BED FORMS PRODUCED BY CLARIFIED TURBULENT FLOW OVER A NON-COHESIVE BED." Journal of Applied Mechanics and Technical Physics 63, no. 1 (2022): 67–74. http://dx.doi.org/10.1134/s0021894422010114.

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31

N., Mohd Radzuan, Anuar M.S., and S. M. Tahir. "The mixing of cohesive and flowable powder materials using a common laboratory powder mixer." Supplementary 1 5, S1 (2021): 19–24. http://dx.doi.org/10.26656/fr.2017.5(s1).004.

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This study presented the homogeneity obtained when mixing cohesive and flowable powder materials using a laboratory powder mixer. The mixing process parameters studied were the mixing time and the mixer rotational speed (20 rpm, 40 rpm and 60 rpm) at the different ratios (95%: 5%, 50%: 50% and 5%: 95%) of the cohesive cocoa and flowable mannitol powder materials. The homogeneity sampled at the powder bed surface showed that only at the highest rotational speed of 60 rpm used in this work yield acceptable homogeneity at the two extremes of the powder mass ratios; 95%: 5% and 5%: 95% of mannitol
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32

Kleijwegt, Rob A. "On the Prediction of Sediment Transport in Sewers with Deposits." Water Science and Technology 27, no. 5-6 (1993): 69–80. http://dx.doi.org/10.2166/wst.1993.0487.

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There is a need for models to predict the negative effects of sewer deposits in order to improve design, maintenance and operation of sewerage systems. The lack of success of deterministic sewer sediment models in the past is caused by a lack of basic knowledge, which causes unknown uncertainties in the model's results. The basic knowledge about non-cohesive sediment transport has been studied with laboratory experiments. This has resulted in an understanding of the non-cohesive sewer sediment transport and the related subjects of bed shear stress, incipient motion, bed forms and flow resistan
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33

Govender, Preyin, Deborah Clare Blaine, and Natasha Sacks. "INFLUENCE OF POWDER CHARACTERISTICS ON THE SPREADABILITY OF PRE-ALLOYED TUNGSTEN- CARBIDE COBALT." South African Journal of Industrial Engineering 32, no. 3 (2021): 284–89. http://dx.doi.org/10.7166/32-3-2664.

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With rising interest in additive manufacturing (AM) techniques, there is an increased focus on research that evaluates critical parameters that guide the selection of powders that are suitable for AM. One such parameter is a powder’s spreadability, described by metrics such as powder bed density and percentage coverage. This study focused on three spray-dried WC-Co powders (two 12 wt% and one 17 wt% Co) and evaluated the influence of typical powder characteristics, such as particle size and shape, apparent density, and flow rate, on their spreadability. It was found that particle size distribu
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34

Nalluri, C., and E. M. Alvarez. "The Influence of Cohesion on Sediment Behaviour." Water Science and Technology 25, no. 8 (1992): 151–64. http://dx.doi.org/10.2166/wst.1992.0189.

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This paper describes the results of a laboratory study financed by the Science and Engineering Research Council (SERC), UK. The work was carried out at the University of Newcastle upon Tyne in collaboration with the Water Research Centre's (WRc) River Basin Management Project during the period 1987-90. The present study has covered hydraulics, deposition, erosion and sediment transport, all with deposited bed. Noncohesive sands and sewer sediment analogues (with cohesive additives to sand) have been used and throughout the study comparisons between cohesive and noncohesive sediments were made.
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35

Safak, Ilgar. "Variability of Bed Drag on Cohesive Beds under Wave Action." Water 8, no. 4 (2016): 131. http://dx.doi.org/10.3390/w8040131.

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36

Sahin, Cihan, Ilgar Safak, Alexandru Sheremet, and Ashish J. Mehta. "Observations on cohesive bed reworking by waves: Atchafalaya Shelf, Louisiana." Journal of Geophysical Research: Oceans 117, no. C9 (2012): n/a. http://dx.doi.org/10.1029/2011jc007821.

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37

Rehman, Z., A. Akbar, and B. G. Clarke. "Characterization of a Cohesive Soil Bed using a Cone Pressuremeter." Soils and Foundations 51, no. 5 (2011): 823–33. http://dx.doi.org/10.3208/sandf.51.823.

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38

Amos, C. L., T. F. Sutherland, D. Cloutier, and S. Patterson. "Corrasion of a remoulded cohesive bed by saltating littorinid shells." Continental Shelf Research 20, no. 10-11 (2000): 1291–315. http://dx.doi.org/10.1016/s0278-4343(00)00024-8.

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39

Xu, Huibin, Wenqi Zhong, Zhulin Yuan, and A. B. Yu. "CFD-DEM study on cohesive particles in a spouted bed." Powder Technology 314 (June 2017): 377–86. http://dx.doi.org/10.1016/j.powtec.2016.09.006.

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40

Helland, Eivind, René Occelli, and Lounès Tadrist. "Numerical study of cohesive powders in a dense fluidized bed." Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics-Physics-Astronomy 327, no. 14 (1999): 1397–403. http://dx.doi.org/10.1016/s1287-4620(00)87511-0.

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41

Mikami, Takafumi, Hidehiro Kamiya, and Masayuki Horio. "Numerical simulation of cohesive powder behavior in a fluidized bed." Chemical Engineering Science 53, no. 10 (1998): 1927–40. http://dx.doi.org/10.1016/s0009-2509(97)00325-4.

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42

Chen, Yuhua, Jun Yang, Ajit Mujumdar, and Rajesh Dave. "Fluidized bed film coating of cohesive Geldart group C powders." Powder Technology 189, no. 3 (2009): 466–80. http://dx.doi.org/10.1016/j.powtec.2008.08.002.

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43

Camenen, Benoît, and Magnus Larson. "A general formula for non-cohesive bed load sediment transport." Estuarine, Coastal and Shelf Science 63, no. 1-2 (2005): 249–60. http://dx.doi.org/10.1016/j.ecss.2004.10.019.

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44

Tatemoto, Yuji, Yoshihide Mawatari, and Katsuji Noda. "Numerical simulation of cohesive particle motion in vibrated fluidized bed." Chemical Engineering Science 60, no. 18 (2005): 5010–21. http://dx.doi.org/10.1016/j.ces.2005.03.058.

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45

Ishikura, Toshifumi, Hiroshi Nagashima, and Mitsuharu Ide. "Behaviour of Cohesive Powders in a Powder-Particle Spouted Bed." Canadian Journal of Chemical Engineering 82, no. 1 (2008): 102–9. http://dx.doi.org/10.1002/cjce.5450820113.

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46

MAEDA, Noriki, and Tomoo FUKUDA. "ENERGY EXPENDED FOR SURFACE AND MASS EROSION IN COHESIVE BED." Japanese Journal of JSCE 81, no. 16 (2025): n/a. https://doi.org/10.2208/jscejj.24-16128.

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47

PARKER, GARY, and NORIHIRO IZUMI. "Purely erosional cyclic and solitary steps created by flow over a cohesive bed." Journal of Fluid Mechanics 419 (September 25, 2000): 203–38. http://dx.doi.org/10.1017/s0022112000001403.

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An erodible surface exposed to supercritical flow often devolves into a series of steps that migrate slowly upstream. Each step delineates a headcut with an associated hydraulic jump. These steps can form in a bed of cohesive material which, once eroded, is carried downstream as washload without redeposition. Here the case of purely erosional, one-dimensional periodic, or cyclic steps in cohesive material is considered. The St. Venant shallow-water equations combined with a formulation for sediment erosion are used to construct a complete theory of the erosional case. The solution allows wavel
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48

Pradhan, S., R. N. Samal, S. B. Choudhury, and P. K. Mohanty. "HYDRODYNAMIC AND COHESIVE SEDIMENT TRANSPORT MODELING IN CHILIKA LAGOON." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-5 (November 15, 2018): 141–49. http://dx.doi.org/10.5194/isprs-annals-iv-5-141-2018.

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<p><strong>Abstract.</strong> Chilika lagoon, one of the largest brackish water lagoons in Asia located along the east coast of India. The rivers draining into the lagoon carry about 13 million tonnes of sediments annually. Because of the cohesiveness properties of the fine sediments, nutrients, heavy metals and other polluted substances tend to bind to the sediment’s surface. Consequently, pollutants can be concentrated in the inlets/estuaries, thus being of great environmental interest. In addition, the mudflats occurring are important biotopes for a large number of micro-
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49

Noya, Yunita A., Mulia Purba, Alan F. Koropitan, and Tri Prartono. "COHESIVE SEDIMENT TRANSPORT MODELING ON INNER AMBON BAY." Jurnal Ilmu dan Teknologi Kelautan Tropis 8, no. 2 (2017): 671–87. http://dx.doi.org/10.29244/jitkt.v8i2.15834.

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The presence of cohesive sediment in the water column can reduce light penetration and affect photosynthesis process, and it can be disrupted the primary productivity of aquatic, and sedimentation of coastal waters. The objective of this research was to determine the cohesive sediment distribution pattern and the relationship with sedimentation. MIKE 3 FM modeling was used to understand the process of sediment transport and sedimentation on Inner Ambon Bay. Sediment transport modeling method was divided into two stages: the hydrodynamic modeling (baroclinic) and sediment transport (mud transpo
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50

Wu, Xuxu, Jonathan Malarkey, Roberto Fernández, Jaco H. Baas, Ellen Pollard, and Daniel R. Parsons. "Influence of cohesive clay on wave–current ripple dynamics captured in a 3D phase diagram." Earth Surface Dynamics 12, no. 1 (2024): 231–47. http://dx.doi.org/10.5194/esurf-12-231-2024.

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Abstract. Wave–current ripples that develop on seabeds of mixed non-cohesive sand and cohesive clay are commonplace in coastal and estuarine environments. While laboratory research on ripples forming in these types of mixed-bed environments is relatively limited, it has identified deep cleaning, the removal of clay below the ripple troughs, as an important factor controlling ripple development. New large-scale flume experiments seek to address this sparsity in data by considering two wave–current conditions with initial clay content, C0, ranging from 0 % to 18.3 %. The experiments record rippl
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