Log in

Relevant bibliographies by topics / Shear stress bed

Contents

Journal articles
Dissertations / Theses
Books
Book chapters
Conference papers
Reports

Academic literature on the topic 'Shear stress bed'

Author: Grafiati

Published: 10 March 2023

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Shear stress bed.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Shear stress bed"

1

Papa, M., S. Egashira, and T. Itoh. "Critical conditions of bed sediment entrainment due to debris flow." Natural Hazards and Earth System Sciences 4, no. 3 (2004): 469–74. http://dx.doi.org/10.5194/nhess-4-469-2004.

Full text

Abstract:

Abstract. The present study describes entrainment characteristics of bed material into debris flow, based on flume tests, numerical and dimensional analyses. Flume tests are conducted to investigate influences of bed sediment size on erosion rate by supplying debris flows having unsaturated sediment concentration over erodible beds. Experimental results show that the erosion rate decreases monotonically with increase of sediment size, although erosion rate changes with sediment concentration of debris flow body. In order to evaluate critical condition of bed sediment entrainment, a length scal

APA, Harvard, Vancouver, ISO, and other styles

2

Guard, Paul Andrew, Peter Nielsen, and Tom E. Baldock. "BED SHEAR STRESS IN UNSTEADY FLOW." Coastal Engineering Proceedings 1, no. 32 (2011): 8. http://dx.doi.org/10.9753/icce.v32.sediment.8.

Full text

Abstract:

Standard engineering methods of estimating bed shear stress using friction factors can fail spectacularly in unsteady hydrodynamic conditions. This paper demonstrates this fact using direct measurements of bed shear stresses under irregular waves using a shear plate apparatus. The measurements are explained in terms of the influence of the horizontal pressure gradient and the shear stresses acting on the surface of the plate. The horizontal fluid velocity at the edge of the boundary layer and the water surface elevation and slope were also measured. The paper demonstrates that the water surfac

APA, Harvard, Vancouver, ISO, and other styles

3

Zhang, Liyuan, Faxing Zhang, Ailing Cai, Zhaoming Song, and Shilin Tong. "Comparison of Methods for Bed Shear Stress Estimation in Complex Flow Field of Bend." Water 12, no. 10 (2020): 2753. http://dx.doi.org/10.3390/w12102753.

Full text

Abstract:

Bed shear stress is closely related to sediment transport in rivers. Bed shear stress estimation is very difficult, especially for complex flow fields. In this study, complex flow field measurement experiments in a 60° bend with a groyne were performed. The feasibility and reliability of bed shear stress estimations using the log-law method in a complex flow field were analyzed and compared with those associated with the Reynolds, Turbulent Kinetic Energy (TKE), and TKE-w′ methods. The results show that the TKE, Reynolds, and log-law methods produced similar bed shear stress estimates, while t

APA, Harvard, Vancouver, ISO, and other styles

4

Seelam, Jaya Kumar, and Tom E. Baldock. "MEASUREMENT AND MODELING OF SOLITARY WAVE INDUCED BED SHEAR STRESS OVER A ROUGH BED." Coastal Engineering Proceedings 1, no. 33 (2012): 21. http://dx.doi.org/10.9753/icce.v33.waves.21.

Full text

Abstract:

Bed shear stresses generated by solitary waves were measured using a shear cell apparatus over a rough bed in laminar and transitional flow regimes (~7600 < Re < ~60200). Modeling of bed shear stress was carried out using analytical models employing convolution integration methods forced with the free stream velocity and three eddy viscosity models. The measured wave height to water depth (h/d) ratio varied between 0.13 and 0.65; maximum near- bed velocity varied between 0.16 and 0.47 m/s and the maximum total shear stress (sum of form drag and bed shear) varied between 0.565 and 3.29 Pa

APA, Harvard, Vancouver, ISO, and other styles

5

Golpira, Amir, Fengbin Huang, and Abul B. M. Baki. "The Effect of Habitat Structure Boulder Spacing on Near-Bed Shear Stress and Turbulent Events in a Gravel Bed Channel." Water 12, no. 5 (2020): 1423. http://dx.doi.org/10.3390/w12051423.

Full text

Abstract:

This study experimentally investigated the effect of boulder spacing and boulder submergence ratio on the near-bed shear stress in a single array of boulders in a gravel bed open channel flume. An acoustic Doppler velocimeter (ADV) was used to measure the instantaneous three-dimensional velocity components. Four methods of estimating near-bed shear stress were compared. The results suggested a significant effect of boulder spacing and boulder submergence ratio on the near-bed shear stress estimations and their spatial distributions. It was found that at unsubmerged condition, the turbulent kin

APA, Harvard, Vancouver, ISO, and other styles

6

Kiraga and Popek. "Bed Shear Stress Influence on Local Scour Geometry Properties in Various Flume Development Conditions." Water 11, no. 11 (2019): 2346. http://dx.doi.org/10.3390/w11112346.

Full text

Abstract:

Numerous approaches in sediment mobility studies highlighted the key meaning of channel roughness, which results not only from bed material granulation but also from various bed forms presence, caused by continuous sediment transport. Those forms are strictly connected with the intensity of particle transport, and they eventuate from bed shear stress. The present paper comprised of local scours geometric dimensions research in three variants of lengthwise development of laboratory flume in various hydraulic properties, both in “clear-water” and “live-bed” conditions of sediment movement. Lots

APA, Harvard, Vancouver, ISO, and other styles

7

Monsalve, Angel, Catalina Segura, Nicole Hucke, and Scott Katz. "A bed load transport equation based on the spatial distribution of shear stress – Oak Creek revisited." Earth Surface Dynamics 8, no. 3 (2020): 825–39. http://dx.doi.org/10.5194/esurf-8-825-2020.

Full text

Abstract:

Abstract. Bed load transport formulations for gravel-bed rivers are often based on reach-averaged shear stress values. However, the complexity of the flow field in these systems results in wide distributions of shear stress, whose effects on bed load transport are not well captured by the frequently used equations, leading to inaccurate estimates of sediment transport. Here, we modified a subsurface-based bed load transport equation to include the complete distributions of shear stress generated by a given flow within a reach. The equation was calibrated and verified using bed load data measur

APA, Harvard, Vancouver, ISO, and other styles

8

Kolerski, Tomasz, and Hung Tao Shen. "Possible effects of the 1984 St. Clair River ice jam on bed changes." Canadian Journal of Civil Engineering 42, no. 9 (2015): 696–703. http://dx.doi.org/10.1139/cjce-2014-0275.

Full text

Abstract:

This study examines the possible effect of the record ice jam of 1984 in the St. Clair River on river bed changes and conveyance. Numerical simulations were made to examine the flow and bed shear stresses during the jam formation and release periods. Simulation results indicate that the ice jam in the river did not cause a significant increase in bed shear stress compared to pre- and post-jam open water conditions. The insignificant change on bed shear stress during the ice jam period is the result of the large flow depth and the limited jam thickness. The bed shear stresses are much less than

APA, Harvard, Vancouver, ISO, and other styles

9

Cheng, Nian-Sheng, and Adrian Wing-Keung Law. "Fluctuations of Turbulent Bed Shear Stress." Journal of Engineering Mechanics 129, no. 1 (2003): 126–30. http://dx.doi.org/10.1061/(asce)0733-9399(2003)129:1(126).

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Agrawal, Sunil K., and Jatinder K. Bewtra. "Modifications to the design procedure for grit chambers." Canadian Journal of Civil Engineering 14, no. 2 (1987): 216–20. http://dx.doi.org/10.1139/l87-033.

Full text

Abstract:

A modified approach to the design of grit chambers has been suggested in this paper. This approach is based on the concept of critical shear stress at the bed rather than mean velocity as used by T. R. Camp. It is recognized that the relationship between critical bed shear stress and mean velocity in a channel is not constant, as assumed by Camp, but varies according to the flow conditions. Critical bed shear stress values, obtained in the laboratory for different particle characteristics, are given in this paper. The proposed method should provide a more rational and a better design procedure

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Shear stress bed"

1

Su, Yan. "An annular fluidized-bed experiment for inter-granular shear stress." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0008/MQ31257.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Yang, Qingjun (Judy Qingjun). "Estimation of the bed shear stress in vegetated and bare channels." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99580.

Full text

Abstract:

Thesis: S.M., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 69-77).<br>The shear stress at the bed of a channel influences important benthic processes such as sediment transport. Several methods exist to estimate the bed shear stress in bare channels without vegetation, but most of these are not appropriate for vegetated channels due to the impact of vegetation on the velocity profile and turbulence production. This study proposes a new model to estimate the

APA, Harvard, Vancouver, ISO, and other styles

3

Yaeger, Mary A. "MEAN FLOW AND TURBULENCE AROUND TWO SERIES OF EXPERIMENTAL DIKES." Thesis, The University of Arizona, 2009. http://hdl.handle.net/10150/193453.

Full text

Abstract:

Scour around various structures obstructing flow in an open channel is a common problem; therefore a better understanding of how turbulent flow affects sediment transport is needed. Additionally, is it the mean flow or the turbulence properties that are more important in contributing to bed shear stress? To this end, an experimental study was conducted in a fixed-bed flume containing a series of dikes. Turbulence intensities and Reynold's stresses were calculated from 3-D velocity measurements gathered with a microADV. Results showed that the maximum shear stress was nearly 12-20 times that of

APA, Harvard, Vancouver, ISO, and other styles

4

Emerson, Samuel D. "The role of bed shear stress in sediment sorting patterns in a reconstructed, gravel bed river." Thesis, San Jose State University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10128515.

Full text

Abstract:

<p> The role of bed shear stress in bed surface grain size sorting was investigated on a reconstructed reach of the Merced River in the Central Valley of California. Pebble count data were collected at the inside, middle, and outside of ten bends in April 2015 and compared to data from pebble counts conducted in previous years. Output from a previously developed 2D flow model (FaSTMECH) was compared to critical shear stresses calculated from median grain-size data. Comparison of pebble count results from 2002 through 2015 showed that there was no temporally consistent pattern of coarsening or

APA, Harvard, Vancouver, ISO, and other styles

5

Sarra, Angela M. "Particle-wall shear stress measurements within the standpipe of a circulating fluidized bed." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2078.

Full text

Abstract:

Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains xi, 137 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 136-137).

APA, Harvard, Vancouver, ISO, and other styles

6

Perret, Emeline. "Transport of moderately sorted gravels at low bed shear stress : impact of bed arrangement and fine sediment infiltration." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSE1223/document.

Full text

Abstract:

Le but de cette thèse est de comprendre la dynamique des graviers au sein des rivières alpines à faible contrainte en utilisant des expériences en laboratoire. Ces rivières sont souvent composées d’une large gamme de sédiments, allant des argiles aux galets. Ces différentes classes sédimentaires peuvent interagir entre elles, ce qui peut rendre difficile l’estimation du transport solide. Des expériences en laboratoire ont été conduites en écoulements instationnaires dans un canal de 18m de long et 1m de large. Deux types de lits ont été étudiés : lits unimodaux et bimodaux. Une attention parti

APA, Harvard, Vancouver, ISO, and other styles

7

Thompson, Charlotte E. L. "The role of the solid-transmitted bed shear stress of mobile granular material on cohesive bed erosion by unidirectional flow." Thesis, University of Southampton, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.398824.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Sime, Louise C. "Reach-scale spatial variation of grain-size, shear stress, and bedload transport in gravel-bed rivers." Thesis, University of Sheffield, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401128.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Valentine, Kendall. "Characterization of the bed, critical boundary shear stress, roughness, and bedload transport in the Connecticut River Estuary." Thesis, Boston College, 2015. http://hdl.handle.net/2345/bc-ir:104550.

Full text

Abstract:

Thesis advisor: Gail C. Kineke<br>This study characterizes the bed of the Connecticut River estuary in terms of grain size and bedforms, and relates these to river discharge, tidal currents, and sediment transport. Over four field excursions, sediment cores were collected, in addition to bathymetry surveys, and water column measurements. A three-dimensional circulation and sediment transport model calculated boundary shear stress over the same time. The bed of the estuary is composed mostly of sand, with small amounts of fine sediments. Deposition of fine sediments is limited by the landward e

APA, Harvard, Vancouver, ISO, and other styles

10

Mayoral, Helen. "Particle Size, Critical Shear Stress, and Benthic Invertebrate Distribution and Abundance in a Gravel-bed River of the Southern Appalachians." Digital Archive @ GSU, 2011. http://digitalarchive.gsu.edu/geosciences_theses/31.

Full text

Abstract:

To determine the relationship between the abundance and density of benthic invertebrates, and the critical shear stress of individual grain sizes, a reach along Smith Creek, was divided into ten 2m x 2m quadrants. Within each quadrant, five randomly selected clasts for each grain size ranging from 2.26 to 25.6 cm were cleaned for benthic invertebrates. Wolman pebble counts for each quadrant were also conducted and used to determine the critical Shields stress per grain size fraction from the model given by Wiberg and Smith (1987) that explicitly accounts for particle hiding/sheltering effect

APA, Harvard, Vancouver, ISO, and other styles

More sources

Books on the topic "Shear stress bed"

1

Sturm, Terry W. Estimating critical shear stress of bed sediment for improved prediction of bridge contraction scour in Georgia: Final report. Dept. of Transportation, Office of Materials and Research, 2008.

Find full text

APA, Harvard, Vancouver, ISO, and other styles

2

Furst, Eric M., and Todd M. Squires. Magnetic bead microrheology. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780199655205.003.0008.

Full text

Abstract:

Magnetism is a convenient force for actively pulling colloidal particles in a material. Many materials of interest in a microrheology experiment have a negligible magnetic susceptibility, and so embedded magnetic particles can be subject to relatively strong forces by fields imposed from outside of the sample. These are usually generated by electromagnets, but can also include the use of permanent magnets, or a combination of both. Such “magnetic tweezers” are used as sensitive force probes, capable of generating forces ranging from femtonewtons to nanonewtons. Magnetic forces and magnetic mat

APA, Harvard, Vancouver, ISO, and other styles

3

Öztorun, Namık Kemal, and Ezgi Öztorun Köroğlu. Steel Structures I. İstanbul University–Cerrahpaşa Press Serial Number: 88, 2025. https://doi.org/10.5152/4100.

Full text

Abstract:

This book provides comprehensive information essential for both the design of new steel structures and the analysis of existing ones. It covers the fundamental principles of design, procedures, historical context, specifications, and the Turkish standard TS 498 for design loads. It also addresses probability and factor of safety, the application of steel in structures, the mechanical properties of structural steels, and an introductory comments on TS 498. The book covers fundamental concepts including the behavior of tension and compression members, methods for their analysis, and details rega

APA, Harvard, Vancouver, ISO, and other styles

4

Escudier, Marcel. Basic equations of viscous-fluid flow. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.003.0015.

Full text

Abstract:

In this chapter it is shown that application of the momentum-conservation equation (Newton’s second law of motion) to an infinitesimal cube of fluid leads to Cauchy’s partial differential equations, which govern the flow of any fluid satisfying the continuum hypothesis. Any fluid flow must also satisfy the continuity equation, another partial differential equation, which is derived from the mass-conservation equation. It is shown that distortion of a flowing fluid can be split into elongational distortion and angular distortion or shear strain. For a Newtonian fluid, the normal and shear stres

APA, Harvard, Vancouver, ISO, and other styles

5

Kiss, Thomas, and Paolo Pelosi. Lung recruitment techniques in the ICU. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0120.

Full text

Abstract:

Lung recruitment manoeuvres (RMs) have been suggested as a means of homogenizing the lung structure and distribution of the mechanical stress across the lungs. Such effects can be achieved provided enough pressure is applied for enough time at the airways, and maintained if adequate levels of positive end-expiratory pressure (PEEP) are used. When RMs effectively open atelectatic tissue, shear stress, and cyclic collapse/reopening are importantly reduced. The lung response to RMs is mainly determined by cause and severity of lung injury, and the position of the lungs with respect to the gravity

APA, Harvard, Vancouver, ISO, and other styles

6

Escudier, Marcel. Turbulent flow. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.003.0018.

Full text

Abstract:

In this chapter the principal characteristics of a turbulent flow are outlined and the way that Reynolds’ time-averaging procedure, applied to the Navier-Stokes equations, leads to a set of equations (RANS) similar to those governing laminar flow but including additional terms which arise from correlations between fluctuating velocity components and velocity-pressure correlations. The complex nature of turbulent motion has led to an empirical methodology based upon the RANS and turbulence-transport equations in which the correlations are modelled. An important aspect of turbulent flows is the

APA, Harvard, Vancouver, ISO, and other styles

7

Escudier, Marcel. Fluids and fluid properties. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.003.0002.

Full text

Abstract:

In this chapter it is shown that the differences between solids, liquids, and gases have to be explained at the level of the molecular structure. The continuum hypothesis makes it possible to characterise any fluid and ultimately analyse its response to pressure difference Δ‎p and shear stress τ‎ through macroscopic physical properties, dependent only upon absolute temperature T and pressure p, which can be defined at any point in a fluid. The most important of these physical properties are density ρ‎ and viscosity μ‎, while some problems are also influenced by compressibility, vapour pressure

APA, Harvard, Vancouver, ISO, and other styles

8

Cates, M. Complex fluids: the physics of emulsions. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198789352.003.0010.

Full text

Abstract:

These lectures start with the mean field theory for a symmetric binary fluid mixture, addressing interfacial tension, the stress tensor, and the equations of motion (Model H). We then consider the phase separation kinetics of such a mixture: coalescence, Ostwald ripening, its prevention by trapped species, coarsening of bicontinuous states, and the role of shear flow. The third topic addressed is the stabilization of emulsions by using surfactants to reduce or even eliminate the interfacial tension between phases; the physics of bending energy, which becomes relevant in the latter case, is the

APA, Harvard, Vancouver, ISO, and other styles

9

Escudier, Marcel. Linear momentum equation and hydrodynamic forces. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198719878.003.0009.

Full text

Abstract:

In this chapter a method is shown for calculating the external reaction force which must be applied to a duct to counteract the hydrodynamic forces generated by a fluid flowing through it. Newton’s second law of motion applied to fluid flow through a duct of arbitrary shape leads to the linear momentum equation for fluid flow. This shows that the change in the momentum flowrate of the fluid is equal to the net force exerted on the fluid. The individual forces which contribute to the net force are the pressure forces at inlet and outlet, and the forces which arise due to the static pressure and

APA, Harvard, Vancouver, ISO, and other styles

10

Borgmeyer, John, and Holly Lang. Dr. Dre. Greenwood, 2006. http://dx.doi.org/10.5040/9798400642340.

Full text

Abstract:

It is almost impossible to listen to a current hip-hop song that does not bear Dr. Dre's influence. With innovations in style that started with the hip-hop group N.W.A., and, later, as a solo rapper and producer, Dre's influence and lasting impact on hip-hop music and culture is undeniable. He pioneered a new style of music that in the early 1990s would come to be known as gangsta rap, and his proteges - Snoop and Eminem - are both considered some of the top rappers to emerge since rap was born on the streets of New York three decades ago. This biography traces Dre's rise to fame, a story that

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Shear stress bed"

1

Maa, Jerome P. Y. "The Bed Shear Stress of an Annular Sea-Bed Flume." In Estuarine Water Quality Management. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75413-5_41.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Maa, Jerome P. Y. "The bed shear stress of an annular sea-bed flume." In Estuarine Water Quality Management Monitoring, Modelling and Research. American Geophysical Union, 1990. http://dx.doi.org/10.1029/ce036p0271.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Visuvamithiran, Nandakumar, V. Sriram, and Jaya Kumar Seelam. "Numerical Modelling of Bed Shear Stress in OpenFOAM." In Lecture Notes in Civil Engineering. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-3119-0_41.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Aliaga, J., and J. Aberle. "Direct bed shear stress measurements in flows through rigid emergent vegetation." In River Flow 2022. CRC Press, 2024. http://dx.doi.org/10.1201/9781003323037-93.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Xia, Y. F., Hua Xu, and S. Z. Zhang. "Measurement and Primary Study on Bed Shear Stress Under Complex Hydrodynamic Environment." In APAC 2019. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0291-0_73.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Sharma, Anurag, and Bimlesh Kumar. "Higher Order Statistics of Reynolds Shear Stress in Nonuniform Sand Bed Channel." In GeoPlanet: Earth and Planetary Sciences. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-70914-7_27.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Rathore, Ayush, Sarvesh Kapoor, Shailza Sharma, Bimlesh Kumar, and Mahesh Patel. "Prediction of Critical Shear Stress Using Machine Learning Algorithms in Mobile Bed Channels." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-97-8035-8_15.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Núñez-González, F., J. A. Macías-Lezcano, and J. Aberle. "Boundary shear stress induced by a ship propeller wake over rough and smooth bed surfaces." In River Flow 2022. CRC Press, 2024. http://dx.doi.org/10.1201/9781003323037-10.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Yao, Zishun, Lidi Shi, Shoupeng Xie, Peng Li, and Dawei Guan. "Experimental Study on Flow Characteristics Around a Submerged Half-Buried Pipeline." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_7.

Full text

Abstract:

AbstractThis paper describes the flow characteristics around a half-buried pipeline exposed to different current conditions by flume experiment. Particle Imaging Velocimetry (PIV) technique was used in the experiment to reveal the flow structure. The experiment results indicate that the hydrodynamic parameters, including average kinetic energy, vorticities, Reynolds shear stress, and kinetic turbulence energy, increased with the Renolds numbers. Furthermore, it is found that the vortex at the upstream side of the half-buried pipeline vanishes gradually with increasing Renolds numbers. However,

APA, Harvard, Vancouver, ISO, and other styles

10

Oviedo Lorío, B., and R. E. Murillo-Muñoz. "Evaluation of critical shear stress in channel beds of fine gravel." In River Flow 2022. CRC Press, 2024. http://dx.doi.org/10.1201/9781003323037-25.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Shear stress bed"

1

Garcia, Alfonso, Trevor Place, and Fabio Rodriguez Corredor. "Applicability of the Shields Number for Prediction of Particle Movements in Oil Transmission Pipelines." In CORROSION 2018. NACE International, 2018. https://doi.org/10.5006/c2018-10996.

Full text

Abstract:

Abstract Corrosive conditions can develop where pipeline sediments accumulate in crude transmission pipelines. The accumulation of sediment at pipeline over bends occurs when inertial forces in the pipe flow cause a thickening in the boundary layer at the pipe floor, which decreases the shear stresses responsible of mobilizing solids. The Shields method has been proposed to predict the accumulation of solid particles taking into account the critical role that shear stress plays in transportation of solids. The Shields method was originally developed as a river model, a simple dimensionless dia

APA, Harvard, Vancouver, ISO, and other styles

2

Tavouktsoglou, Nicholas S., John M. Harris, Richard R. Simons, and Richard J. S. Whitehouse. "Bed Shear Stress Distribution Around Offshore Gravity Foundations." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-41966.

Full text

Abstract:

Offshore gravity foundations are often designed with complex geometries. Such structures interact with the local hydrodynamics and generate enhanced bed shear stresses and flow turbulence capable of scouring the seabed or destabilizing bed armour where deployed. In the present study a novel bed shear stress measurement method has been developed from the camera and laser components of a Particle Image Velocimetry (PIV) system. The bed shear stress amplification was mapped out around six models of gravity foundations with different geometries. Tests were repeated for two bed roughness conditions

APA, Harvard, Vancouver, ISO, and other styles

3

Sumer, B. M., J. Fredsøe, N. Christiansen, and S. B. Hansen. "Bed Shear Stress and Scour Around Coastal Structures." In 24th International Conference on Coastal Engineering. American Society of Civil Engineers, 1995. http://dx.doi.org/10.1061/9780784400890.116.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Rankin, Kelly L., Michael S. Bruno, and Richard I. Hires. "Measurement of Shear Stress on a Moveable Bed." In 26th International Conference on Coastal Engineering. American Society of Civil Engineers, 1999. http://dx.doi.org/10.1061/9780784404119.199.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Oms, C., M. C. Gromaire-Mertz, R. DeSutter, and G. Chebbo. "Measurement of Local Bed Shear Stress in Combined Sewers." In Specialty Symposium on Urban Drainage Modeling at the World Water and Environmental Resources Congress 2001. American Society of Civil Engineers, 2001. http://dx.doi.org/10.1061/40583(275)48.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Myrhaug, Dag, and Lars Erik Holmedal. "Seabed Shear Stress Spectrum for Very Rough Beds." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57144.

Full text

Abstract:

The spectrum of seabed shear stresses at beds with large roughness beneath ocean surface waves in finite water depth is derived by using the wave friction factor for large roughness. It is expressed in terms of the transfer function between the waves at the surface and the shear stress at the bed, and the wave spectrum in finite water depth, which is obtained by multiplying the deep water wave spectrum with a depth correction factor. The seabed shear stress spectrum for laminar flow, which is of practical interest for flow over muds, is also given as a reference case. Examples are included to

APA, Harvard, Vancouver, ISO, and other styles

7

Yilmaz, L. "Bed Shear Stress of a Flowing Meandering Fluid-Structure Interaction." In ASME 2005 Pressure Vessels and Piping Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/pvp2005-71530.

Full text

Abstract:

An analytical model is developed for free-surface flow over an erodible bed and is used to investigate the stability of the fluid-bed interface and the characteristics of the bed features by measuring the shear stress distribution with hot-film sensors. The model is based on the potential flow over a two-dimensional, moving, wavy bed with a sinusoidal profile of varying amplitude, and a sediment transport relation in which the transported rate is proportional to the power of the fluid velocity at the level of the meandering bed. Consideration is given to the factors involved in determining the

APA, Harvard, Vancouver, ISO, and other styles

8

RATHORE, Vijit, Nadia PENNA, Subhasish DEY, and Roberto GAUDIO. "Computation of Bed Shear Stress from Velocity Measurements in a Gradually Varying Roughness Bed." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0473.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

MUNAR-MARTINEZ, MATEO, ANDRÉS VARGAS-LUNA, and ANDRÉS TORRES. "LABORATORY INVESTIGATION ON BED-SHEAR STRESS PARTITIONING IN VEGETATED FLOWS." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0438.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Matousˇek, Va´clav. "Solids Shear Stress in Sheet Flow Above Eroded Plane Bed." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-09009.

Full text

Abstract:

Solids shear stress at the bottom of a shear layer is described and quantified on a basis of characteristic shapes of concentration- and velocity profiles across a thickness of the layer. A comparison with experimental data shows that the bed friction coefficient associated with the solids shear stress correlates with the Shields number, relative height of the discharge area and the delivered concentration of solids in the sheet flow.

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Shear stress bed"

1

Pullammanappallil, Pratap, Haim Kalman, and Jennifer Curtis. Investigation of particulate flow behavior in a continuous, high solids, leach-bed biogasification system. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600038.bard.

Full text

Abstract:

Recent concerns regarding global warming and energy security have accelerated research and developmental efforts to produce biofuels from agricultural and forestry residues, and energy crops. Anaerobic digestion is a promising process for producing biogas-biofuel from biomass feedstocks. However, there is a need for new reactor designs and operating considerations to process fibrous biomass feedstocks. In this research project, the multiphase flow behavior of biomass particles was investigated. The objective was accomplished through both simulation and experimentation. The simulations included

APA, Harvard, Vancouver, ISO, and other styles

2

Tarpley, Danielle, and David Perkey. Impacts of Granular Activated Carbon (GAC) on erosion behavior of muddy sediment. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/44841.

Full text

Abstract:

Recent policy changes regarding the placement of dredged material have encouraged the USACE to increase its beneficial use (BU) of the sediments dredged from the nation’s navigation channels. A good portion of this material is fine grained (<63 μm), which traditionally has limited use in BU applications, in part due to its dispersive nature. A need exists to evaluate the potential of stabilizing and using fine-grained sediment (FGS) in BU projects. Previous studies have shown the addition of granular sand to FGS reduces the mobility of the bed. The potential of using Granular Activated Carb

APA, Harvard, Vancouver, ISO, and other styles

3

Hammack, E. A., David S. Smith, and Richard L. Stockstill. Modeling Vessel-Generated Currents and Bed Shear Stresses. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada482693.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Gerald, Terry. Linking the SEDLZJ portable standalone library to the CMS coastal hydrodynamic model. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47646.

Full text

Abstract:

This document describes the repackaging and linkage of the Sandia National Laboratories Environmental Fluid Dynamics Sediment Processes Code (SNL-EFDC-SEDZLJ), (Thanh et al. 2008). It was originally incorporated within a modified version of the US Environmental Protection Agency’s (USEPA) EFDC public-domain surface-water flow, sediment transport, and water-quality model developed by John Hamrick (Hamrick 1992) and its linkage to the ERDC-CHL-CMS hydrodynamic model. SNL-EFDC simulates flow and transport of sediment as bedload and suspended load. SNL-EFDC-SEDZLJ improves EFDC with updated sedime

APA, Harvard, Vancouver, ISO, and other styles

5

Kinikles, Dellena, and John McCartney. Hyperbolic Hydro-mechanical Model for Seismic Compression Prediction of Unsaturated Soils in the Funicular Regime. Pacific Earthquake Engineering Research Center, University of California, Berkeley, CA, 2022. http://dx.doi.org/10.55461/yunw7668.

Full text

Abstract:

A semi-empirical elasto-plastic constitutive model with a hyperbolic stress-strain curve was developed with the goal of predicting the seismic compression of unsaturated sands in the funicular regime of the soil-water retention curve (SWRC) during undrained cyclic shearing. Using a flow rule derived from energy considerations, the evolution in plastic volumetric strain (seismic compression) was predicted from the plastic shear strains of the hysteretic hyperbolic stress-strain curve. The plastic volumetric strains are used to predict the changes in degree of saturation from phase relationships

APA, Harvard, Vancouver, ISO, and other styles

6

Ziegler, Nancy, Nicholas Webb, John Gillies, et al. Plant phenology drives seasonal changes in shear stress partitioning in a semi-arid rangeland. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47680.

Full text

Abstract:

Accurate representation of surface roughness in predictive models of aeolian sediment transport and dust emission is required for model accuracy. While past studies have examined roughness effects on drag partitioning, the spatial and temporal variability of surface shear velocity and the shear stress ratio remain poorly described. Here, we use a four-month dataset of total shear velocity (u*) and soil surface shear velocity (us*) measurements to examine the spatiotemporal variability of the shear stress ratio (R) before, during, and after vegetation green-up at a honey mesquite (Prosopis glan

APA, Harvard, Vancouver, ISO, and other styles

7

Wang, Han, Issam Qamhia, Erol Tutumluer, and Youngdae Kim. Effectiveness of Geosynthetics in Soil/Aggregate Stabilization—Evaluation Using Bender Element Sensor Technology. Illinois Center for Transportation, 2025. https://doi.org/10.36501/0197-9191/25-007.

Full text

Abstract:

This report presents laboratory evaluations of the effectiveness of geosynthetics in stabilizing unbound aggregate layers and develops design guidelines for using geosynthetic-stabilized pavements in Illinois. The research focused on quantifying benefits from geosynthetic mechanical stabilization and incorporating those benefits into pavement analysis and design procedures. An experimental program was conducted, including laboratory triaxial testing and large-scale test bed evaluations. Twelve geosynthetic products, including ten geogrids (integral or punched and drawn, welded, and woven) and

APA, Harvard, Vancouver, ISO, and other styles

8

Velghe, Ineke, Bart Buffel, Veerle Vandeginste, Wim Thielemans, and Frederik Desplentere. Modelling hydrolytic, thermal, and mechanical degradation of PLA during single-screw extrusion. Universidad de los Andes, 2024. https://doi.org/10.51573/andes.pps39.ss.dbc.1.

Full text

Abstract:

Since melt processing causes degradation of poly(lactic acid) or PLA, it is crucial to understand the effect of extrusion conditions on the molecular weight reduction. Kinetic models found in literature are promising tools to describe hydrolytic, thermal, and mechanical degradation during extrusion. In order to use these models, extrusion parameters (that are equipment dependent) should be translated into the four fundamental parameters that determine degradation: moisture content in PLA, residence time, shear stress history and temperature history. This work presents a methodology to use nume

APA, Harvard, Vancouver, ISO, and other styles

9

Bhushan, Shanti, Greg Burgreen, Wesley Brewer, and Ian Dettwiller. Assessment of neural network augmented Reynolds averaged Navier Stokes turbulence model in extrapolation modes. Engineer Research and Development Center (U.S.), 2025. https://doi.org/10.21079/11681/49702.

Full text

Abstract:

A machine-learned model enhances the accuracy of turbulence transport equations of RANS solver and applied for periodic hill test case. The accuracy is investigated in extrapolation modes. A parametric study is also performed to understand the effect of network hyperparameters on training and model accuracy and to quantify the uncertainty in model accuracy due to the non-deterministic nature of the neural network training. For any network, less than optimal mini-batch size results in overfitting, and larger than optimal reduces accuracy. Data clustering is an efficient approach to prevent the

APA, Harvard, Vancouver, ISO, and other styles

10

Hammack, E., and Morgan Johnston. Three-dimensional numerical model study of flow near a scour hole in Isle of Wight Bay near Ocean City, Maryland. Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43921.

Full text

Abstract:

A scour hole has developed in Isle of Wight Bay near Ocean City, MD. This hole could grow to the point that nearby land developments are threatened, so channel-bed protection measures may be implemented near this scour hole. Appropriately designing those bed protection measures requires knowledge of the flow behavior in the scour hole, so a three-dimensional model study has been conducted to determine the flow behavior at the extreme flood and ebb tides present during a pre-selected month of tide cycles. Steady-state simulations of the flows during those two tide conditions have been completed

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!