Geophysical granular and particle-laden flows

papers of a theme issue

Publisher: The Royal Society in London

Written in English
Published: Pages: 1700 Downloads: 551
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  • Granular materials -- Fluid dynamics.,
  • Particles.
  • About the Edition

    An introduction is given to the title theme, in general, and the specific topics treated in detail in the articles of this theme issue of the Philosophical Transactions. They fit into the following broader subjects: (i) dense, dry and wet granular flows as avalanche and debris flow events, (ii) air-borne particle-laden turbulent flows in air over a granular base as exemplified in gravity currents, aeolian transport of sand, dust and snow and (iii) transport of a granular mass on a two-dimensional surface in ripple formations of estuaries and rivers and the motion of sea ice.

    Edition Notes

    Statementorganized and edited by Kolumban Hutter and Shiva P. Pudasaini.
    SeriesPhilosophical transactions -- v. 363, no. 1832.
    ContributionsHutter, Kolumban., Pudasaini, Shiva P.
    The Physical Object
    Paginationp. 1493-1700 :
    Number of Pages1700
    ID Numbers
    Open LibraryOL16127075M

With major implications for applied physics, engineering, and the natural and social sciences, the rapidly growing area of environmental fluid dynamics focuses on the interactions of human activities, environment, and fluid motion. A landmark for the field, the two-volume Handbook of. topics related to gravity-driven geophysical flows, while in Ref. [14] the same author focuses more exclusively on box models and shallow water equations for turbidity currents. In Ref. [15], he dis-cusses aspects of dilute as well as concentrated particle-laden cur-rents, along with dense granular flows. Kneller and Buckee [16]. May 04,  · Book chapters will be unavailable on Saturday 24th August between 8ampm BST. This is for essential maintenance which will provide improved performance going forwards. A. & Rothman, D. H. Erosion of a granular bed driven by laminar fluid flow. J. Multiphase and Particle-laden Flows: Particle/fluid flow Geophysical and Geological Cited by: Sediment Transport A Geophysical Phenomenon by ALBERT GYR and KLAUS HOYER Institute of Environmental Engineering Swiss Federal Institute of Technology Zürich, Switzerland A C.I.P. Catalogue record for this book is available from the Library of Congress. ISBN ISBN ISBN ISBN

geophysical ows, including the shallow water approach for analyzing them, Hup-pert () focuses more exclusively on box models and shallow water equations for turbidity currents. Huppert () discusses both dilute as well as concen-trated particle-laden currents, . A computational approach is presented in this paper for the direct numerical simulation of 3D particulate flows. The given approach is based on the fictitious domain method, whereby the Discrete Element Method (DEM) and the Finite Element Method (FEM) are explicitly coupled for the numerical treatment of particle-fluid by: flows, particle-laden turbulent flows, unsteady aerodynam-ics and aeroelastic control, and gas turbine heat transfer. While the majority of his work is experimental, he remains active in simulation of multiphase flows. He is especially proud of the nine fluid mechanics professors who have graduated from his group. He recently completed a term as. The annual report of for Njord, a cross-disciplinary geoscience-physics centre at the Faculty of Mathematics and Natural Sciences, University of Oslo.

The following is a (mostly) up-to-date list of the publications that have arisen from our group. BibTeX entries and DOI links are provided for convenience. Book Chapters. PUBLICATIONS Settling-driven Instability in Two-component, Stably Stratified Hele-Shaw Flows, R. Oliveira and E. Meiburg, submitted to J. Fluid Mech. The Shape Evolution of Liquid Droplets in Miscible Environments, D. Walls, E. Meiburg and G. Fuller, submitted to J. Fluid Mech. This chapter discusses the gravity processes and deposits on continental slope, rise, and abyssal plains. The impact on human infrastructure helps in detecting the gravity processes. They are mainly interpreted from the nature of their by: Keywords: particle-laden flows, fictitious domain method Abstract Fluid particulate flows are common phenomena in nature and industry. Modeling of such flows at micro and macro levels as well establishing relationships between these approaches are needed to understand properties of the particulate matter.

Geophysical granular and particle-laden flows Download PDF EPUB FB2

Geophysical granular and particle-laden flows: Review of the field These issues are explained in detail in a recently published book by Schneider and Hutter (Solid–Fluid Mixtures of.

Granular and particle-laden flows: From laboratory experiments to field observations For example, although geophysical granular flows are often wet (i.e., significantly affected or driven by. Geophysical granular and particle laden flows are common phenomena at the surface of the Earth and other planets (figures 1 and 2).

They consist of solid-fluid mixtures driven by gravity and that propagate in an ambient fluid (except on some extraterrestrial planets) over generally complex topographies. Mar 28,  · Abstract. Fast flows of granular material are considered here. The Savage–Hutter theory for dry granular flows down an inclined plane is presented to discuss the non-hydrostatic bed-slope, the bed-normal velocity non-hydrostatic effect is incorporated using Serre’s soundsofgoodnews.comfied analytical solutions, namely the granular solitary wave and the granular free overfall, are.

Mar 20,  · Rheology of granular materials is principal to a suite of geophysical processes, including dry ravel, sand dune migration, the motion of landslides, debris flows, pyroclastic flows, It is unclear whether the basal shear stresses in granular flows are analogous to a critical shear stress for fluvial or other fluid entrainment processes, Cited by: Particle-Laden Flow From Geophysical to Kolmogorov Scales.

Editors: Geurts, Bernard, Clercx, Herman, Particle laden geophysical flows: from geophysical to sub-kolmogorov scales. Pages Fernando, H. (et al.) Book Title Particle-Laden Flow Book Subtitle From Geophysical to Kolmogorov Scales $ Oct 20,  · Particle-Laden Flow: From Geophysical to Kolmogorov Scales - Ebook written by Bernard Geurts, Herman Clercx, Wim Uijttewaal.

Read this book using Google Play Books app on your PC, android, iOS devices. Download for offline reading, highlight, bookmark or take notes while you read Particle-Laden Geophysical granular and particle-laden flows book From Geophysical to Kolmogorov Scales.4/4(1).

Program participant, Cambridge University, Isaac Newton Institute for Mathematical Sciences, Granular and Particle-Laden Flows, GRADUATE STUDENT MENTORING: [Bold indicates chair or co-chair] Leary, Kate, in progress, Ph.D.

student in Geology, “Patterns of turbulence and sediment transport over ripples and dunes”. in granular fluid-flows at different scales, from that of the single grains to that of the mesoscopic deformation of an assembly of grains.

A specific attention is to be paid on the two types of granular transport mostly encountered in geophysical and industrial applications, namely granular-fluid flows.

Zhiqiang Lai, Luis E. Vallejo, Wei Zhou, Gang Ma, Jairo M. Espitia, Bernardo Caicedo and Xiaolin Chang, Collapse of Granular Columns With Fractal Particle Size Distribution: Implications for Understanding the Role of Small Particles in Granular Flows, Geophysical.

Refereed Book Chapters. August 1, Dufek CV 2 *Dufek, Estep, J.# and Dufek, J. () Substrate effects from force chain dynamics in dense granular flows.

Journal of Geophysical Research, Earth Surface. VolumeIssue F1, F The In-Situ Production of Ash in Pyroclastic Flows. Journal of Geophysical Research, Advances in Geophysical and Environmental Mechanics and Mathematics Series Editor: Professor Kolumban Hutter.

Board of Editors Aeolean Transport, Sediment Transport, Granular Flow these are sometimes called particle laden systems – the fraction of the volume It is the thesis of this small book that differences in these quantities are. Ash aggregation in explosive volcanic eruptions.

Geophysical Research Letters, Vol. 40, – Estep, J. * and Dufek, J. Discrete Element Simulations of Bed Force Anomalies due to Force Chains in Dense Granular flows. Journal of Volcanology and.

"Depth resolved granular transport driven by shearing fluid flow," Benjamin Allen and Arshad Kudrolli, Phys. Rev. Fluids 2, (). "Critical shear rate and torque stability condition for a particle resting on a surface in a fluid flow," Arshad Kudrolli, David Scheff, Benjamin Allen, J.

of gravity-driven granular flows,” Granular Matter 9 () T. Shinbrot, K. LaMarche & BJ Glasser, “Triboelectrification and Razorbacks: geophysical patterns produced in dry grains,” Physical Review Letters 96 () PE Arratia, T.

Shinbrot, MM. A saturated discrete particle model and characteristic‐based SPH method in granular materials. Xikui Li. Corresponding Author. Comparative study on mesh-based and mesh-less coupled CFD-DEM methods to model particle-laden flow, Powder Technology,(78), Journal of Geophysical Research: Solid Earth,B9, ().

The 10th ICMF will be devoted to all aspects of Multiphase Flow. Experts and professional researchers from all over the world will attend and make presentations of their.

Jul 19,  · The parallels between TBLSF and geophysical surface flows have been proposed for many decades, especially in the context of the sediment mechanics of particle‐laden turbulent flows [Middleton and Southard, ].Cited by: Geophysical Research Letters Implicit finite element schemes for stationary compressible particle-laden gas flows.

Journal of Computational and Applied MathematicsA Roe-type scheme for two-phase shallow granular flows over variable topography. ESAIM: Mathematical Modelling and Numerical AnalysisCited by: Ash aggregation in explosive volcanic eruptions. Geophysical Research Letters, Vol.

40, – Estep, J. and Dufek, J. Discrete Element Simulations of Bed Force Anomalies due to Force Chains in Dense Granular flows. Journal of. Talks will review progress and present ongoing challenges in the understanding of particle bearing and particle-laden flows. As well as fundamental observational, computational, experimental and theoretical research, the workshop will emphasize geophysical and industrial applications to such phenomena as.

The fascinating behaviour of granular assemblies with fluid is known to all of us from sunny days at the beach. To really describe the phenomena, the effect of the time-scales, introduced by the fluid transport on relaxation, fluid migration, and failure were studied in.

We consider a model for dusty gas flow that consists of the compressible Euler equations for the gas coupled to a similar (but pressureless) system of equations for the mass, momentum, and energy of the dust. These sets of equations are coupled via drag terms and heat transfer.

A high‐resolution wave‐propagation algorithm is used to solve the equations by: Read "Physics of Lakes Volume 3: Methods of Understanding Lakes as Components of the Geophysical Environment" by Kolumban Hutter available from Rakuten Kobo.

The ongoing thread in this volume of Physics of Lakes is the presentation of different methods of investigation for proc Brand: Springer International Publishing.

Our research activities pertain to the numerical simulation of complex fluid flows with heat and mass transfer, mostly laminar or inertial (weakly turbulent at most). Applications range from industrial processes in the energy industry (fluidized beds, solid particle solar receivers, slurry transport) to geophysical and environmental flows.

Gradients in the particle volume fraction develop due to the interaction of gravity and the turbulent suspension of different size particles, often resulting in more particle-enriched bases as the particle-laden flows continue to propagate away from the by: High-intensity, high-efficiency sound sources are needed for acoustic agglomeration of particle-laden aerosols in power plant flues and for combustion enhancement.

The mechanical design of an experimental and a full-size siren is presented. Tunable inlet chambers are included to minimize the acoustic power radiated backward in the siren.

An important aspect of this book is the formulation and investigation of a simple but appropriate continuum mechanical model for the realistic prediction of geophysical flows of granular material. This will help the practitioners in the field to better understand the physical input and provide them with a.

This work deals with numerical simulations of fresh concrete flows. After the first introductory chapter dealing with the various physical phenomena involved in flows of fresh cementitious materials,the aim of the second chapter is to give an overview of the work carried out on simulation of flow of cement-based materials using computational fluid dynamics (CFD).

Nov 27,  · For this purpose, our review is not meant to be a complete summary to the literature on discrete simulation, but rather a demonstration of its feasibility for engineering applications. We therefore discuss the enabling methods and technologies for MSDS, taking granular and particle-fluid flows as typical examples in chemical by:.

Granular flows in inclined channels with linear contractions D. Tunuguntla, I. Denissen, T. Weinhart and A. Thornton On the use of Lattice Boltzmann method for simulating peristaltic flow of particle-laden Bingham fluids in a closed cavity Z. Poursharifi and K. Sadeghy WALLS, PARTICLES AND CONTACTS, GEOPHYSICAL APPLICATIONS, ETC.A supplement to the classic Sedimentation Engineering (Manual 54), this new volume not only documents the evolution of the field over a year period, but also reports on the state of the practice.

This manual addresses new topics in physical processes, measurements, modeling, and practice, mainly in the context of rivers and inland water bodies.Assistant professor in Geophysics Laboratoire de G´eologie de Lyon - UMR Campus de la Doua - Bˆatiment G´eode Book chapters D.

Weaire, V. Langlois, M. Saadatfar, S. Hutzler, Foam as granular matter, in Granular and complex materials, eds. T. Aste, T. Di Matteo, A. Tordesillas, World Scientific Publishing ().