A numerical study of the flow of Bingham-like fluids in two-dimensional vane and cylinder rheometers using a smoothed particle hydrodynamics (SPH) based method

Zhu, Huaning; Martys, Nicos; Ferraris, Chiara F.; Kée, D. De

doi:10.1016/j.jnnfm.2010.01.012

Cited by 67 publications

(38 citation statements)

References 36 publications

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“…Water permeability also changes in the soil-rock mixture, which agrees with early relevant findings [47][48]. There are many influencing factors for water permeation of the soil-rock mixture.…”

Section: Resultssupporting

confidence: 89%

Investigating Water Permeation through the Soil-Rock Mixture in Underground Engineering

Wang¹,

Meng²,

Geng³

et al. 2017

Pol. J. Environ. Stud.

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Groundwater inrush within faults is an important issue in underground engineering. The process of water permeation through the soil-rock mixture has been numerically investigated. The simulated soil-rock mixture was presented with rock blocks, and filled with selected types of soil particles. The Euler-Euler method was employed with multiphase interaction. Meanwhile, the filling soil was assumed to be Bingham fluid with additional user-defined function. Then the detailed evolutions of water permeation through the soil-rock mixture were presented visually, including water distribution, water velocity field, permeation time, and penetration time. It is shown that water permeation changes with time and space in the soil-rock mixture, and the overall process of water permeation can be divided into three different stages. Moreover, major variables including water velocity, size of soil particles, and yield stress of soil were considered, which clearly influenced water permeation. Soil density showed little effect on water permeation, and the permeation time decreases with increasing water velocity. Water permeation through the soil-rock mixture is easier when the filling soil consists of smaller particles. The permeation rate of water obviously decreases with increasing yield stress. Meanwhile, different types of soils were considered with corrections on the dynamic viscosities. We found that sand and soil behave differently when water permeates through the soilrock mixture. Furthermore, selected results on water permeation were compared with the relevant studies, and reasonable agreements were reached. The presented stimulation results provide detailed information for further understanding on the mechanical mechanism of water permeation through the soil-rock mixture used in underground engineering.

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Section: Resultssupporting

confidence: 89%

Investigating Water Permeation through the Soil-Rock Mixture in Underground Engineering

Wang¹,

Meng²,

Geng³

et al. 2017

Pol. J. Environ. Stud.

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“…The computational approach used in this work for modeling suspension is based on Smooth Particle Hydrodynamics (SPH) [11]. SPH is a Lagrangian formulation of the Navier-Stokes equations that has been adapted to model non-Newtonian fluids containing solid inclusions.…”

Section: Modeling Approachmentioning

confidence: 99%

Certification of SRM 2493: standard reference mortar for rheological measurements

Olivas¹,

Ferraris²,

Martys³

et al. 2017

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Rheological measurements are often performed using a rotational rheometer. In this type of rheometer, the tested fluid is sheared between two surfaces, one of which acts as the rotating surface [1]. Usually, the rotational velocity is imposed and the response of the material is monitored by the measurement of the torque. Typically, manufacturers of rheometers recommend using a standard oil of known viscosity to verify that the instrument is operating correctly. However, these oils are expensive, and they cannot be used for the large volumes employed in concrete rheometers. Furthermore, the oils do not contain aggregates and may not offer a valid representation of concrete since concrete is a suspension with solid particulates and display non-Newtonian behavior. Therefore, a relatively inexpensive, accurate standard reference material (SRM) for concrete rheometers is needed. The development of this new SRM is based on a multiphase approach: (1) the first phase established the SRM 2492 for cementitious paste mixtures [2], (2) the second phase developed and certified the mortar phase SRM 2493, and (3) the completion of an SRM 2497 for concrete mixtures will mark the third stage. This third stage is currently in progress.The purpose of this report is to describe the process used to certify SRM 2493, a "Standard Reference Mortar for Rheological Measurements". The results of the rheological testing used to determine the rheological characteristics of SRM 2493 are discussed, along with the corresponding statistical analyses that was conducted to certify that the proposed models and reference values are valid.

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“…To overcome this issue, several different approaches have been used where the solid zone of the Bingham fluid is approximated by a highly viscous fluid (e.g. [25,30,[40][41][42]). In this work, the bilinear model as presented by Hosseini et al [41] is implemented, with…”

Section: Power-law Modelmentioning

confidence: 99%

Landslides and tsunamis predicted by incompressible smoothed particle hydrodynamics (SPH) with application to the 1958 Lituya Bay event and idealized experiment

et al. 2017

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Tsunamis caused by landslides may result in significant destruction of the surroundings with both societal and industrial impact. The 1958 Lituya Bay landslide and tsunami is a recent and well-documented terrestrial landslide generating a tsunami with a run-up of 524 m. Although recent computational techniques have shown good performance in the estimation of the run-up height, they fail to capture all the physical processes, in particular, the landslide-entry profile and interaction with the water. Smoothed particle hydrodynamics (SPH) is a versatile numerical technique for describing free-surface and multi-phase flows, particularly those that exhibit highly nonlinear deformation in landslide-generated tsunamis. In the current work, the novel multi-phase incompressible SPH method with shifting is applied to the Lituya Bay tsunami and landslide and is the first methodology able to reproduce realistically both the run-up and landslide-entry as documented in a benchmark experiment. The method is the first paper to develop a realistic implementation of the physics that in addition to the non-Newtonian rheology of the landslide includes turbulence in the water phase and soil saturation. Sensitivity to the experimental initial conditions is also considered. This work demonstrates the ability of the proposed method in modelling challenging environmental multi-phase, non-Newtonian and turbulent flows.

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A numerical study of the flow of Bingham-like fluids in two-dimensional vane and cylinder rheometers using a smoothed particle hydrodynamics (SPH) based method

Cited by 67 publications

References 36 publications

Investigating Water Permeation through the Soil-Rock Mixture in Underground Engineering

Investigating Water Permeation through the Soil-Rock Mixture in Underground Engineering

Certification of SRM 2493: standard reference mortar for rheological measurements

Landslides and tsunamis predicted by incompressible smoothed particle hydrodynamics (SPH) with application to the 1958 Lituya Bay event and idealized experiment

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