Flow of non‐newtonian fluids in porous media

Sochi, Taha

doi:10.1002/polb.22144

Cited by 123 publications

(96 citation statements)

References 153 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…So far, no general methodology has been developed. In the absence of such a general approach, four main models are found in the literature to deal with the flow of complex fluids in porous media, namely continuum models, ''bundle of tubes'' models, pore-scale network modeling and numerical methods (Sochi 2010). …”

Section: Introductionmentioning

confidence: 99%

“…The disadvantage is that the detailed pore space description is often complex, hard to implement and leads to large computational costs and serious convergence difficulties, the latter being enhanced for viscoelastic fluids. For these reasons, the flow processes and porous media currently within the reach of numerical investigation are restricted to the simplest ones (Sochi 2010;Liu and Wu 2009), unless very advanced computational resources are available.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Microfluidic systems for the analysis of viscoelastic fluid flow phenomena in porous media

Galindo-Rosales

Campo-Deaño

Pinho

et al. 2011

Microfluid Nanofluid

View full text Add to dashboard Cite

The Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. RESEARCH PAPERMicrofluidic systems for the analysis of viscoelastic fluid flow phenomena in porous media Abstract In this study, two microfluidic devices are proposed as simplified 1-D microfluidic analogues of a porous medium. The objectives are twofold: firstly to assess the usefulness of the microchannels to mimic the porous medium in a controlled and simplified manner, and secondly to obtain a better insight about the flow characteristics of viscoelastic fluids flowing through a packed bed. For these purposes, flow visualizations and pressure drop measurements are conducted with Newtonian and viscoelastic fluids. The 1-D microfluidic analogues of porous medium consisted of microchannels with a sequence of contractions/expansions disposed in symmetric and asymmetric arrangements. The real porous medium is in reality, a complex combination of the two arrangements of particles simulated with the microchannels, which can be considered as limiting ideal configurations. The results show that both configurations are able to mimic well the pressure drop variation with flow rate for Newtonian fluids. However, due to the intrinsic differences in the deformation rate profiles associated with each microgeometry, the symmetric configuration is more suitable for studying the flow of viscoelastic fluids at low De values, while the asymmetric configuration provides better results at high De values. In this way, both microgeometries seem to be complementary and could be interesting tools to obtain a better insight about the flow of viscoelastic fluids through a porous medium. Such model systems could be very interesting to use in polymer-flood processes for enhanced oil recovery, for instance, as a tool for selecting the most suitable viscoelastic fluid to be used in a specific formation. The selection of the fluid properties of a detergent for cleaning oil contaminated soil, sand, and in general, any porous material, is another possible application.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microfluidic systems for the analysis of viscoelastic fluid flow phenomena in porous media

Galindo-Rosales

Campo-Deaño

Pinho

et al. 2011

Microfluid Nanofluid

View full text Add to dashboard Cite

show abstract

“…According to the Herschel-Bulkley model, the shear stress as a function of the shear rate is given by the following relation [22,50,53] …”

Section: Herschel-bulkley Modelmentioning

confidence: 99%

“…According to the Ellis model, the fluid viscosity µ as a function of the shearstress is given by the following expression [22,[46][47][48][49][50] …”

Section: Ellis Modelmentioning

confidence: 99%

Flow of non‐Newtonian fluids in converging–diverging rigid tubes

Sochi

2015

Asia-Pacific J Chem Eng

Self Cite

View full text Add to dashboard Cite

A residual‐based lubrication method is used to find the flow rate and pressure field in converging‐diverging rigid tubes for the flow of time‐independent category of non‐Newtonian fluids. Five converging‐diverging prototype geometries were used in this investigation in conjunction with two fluid models: Ellis and Herschel‐Bulkley. The method was validated by convergence behavior sensibility tests, convergence to analytical solutions for the straight tubes as special cases for the converging‐diverging tubes, convergence to analytical solutions found earlier for the flow in converging‐diverging tubes of Newtonian fluids as special cases for non‐Newtonian, and convergence to analytical solutions found earlier for the flow of power‐law fluids in converging‐diverging tubes. A brief investigation was also conducted on a sample of diverging‐converging geometries. The method can in principle be extended to the flow of viscoelastic and thixotropic/rheopectic fluid categories. The method can also be extended to geometries varying in size and shape in the flow direction, other than the perfect cylindrically‐symmetric converging‐diverging ones, as long as characteristic flow relations correlating the flow rate to the pressure drop on the discretized elements of the lubrication approximation can be found. These relations can be analytical, empirical and even numerical and hence the method has a wide applicability range. © 2015 Curtin University of Technology and John Wiley & Sons, Ltd.

show abstract

“…A nonNewtonian fluid is a fluid whose viscosity varies with the applied stress. The relation between the strain rate and the shear stress is nonlinear, and can be time-dependent [2]. The constitutive equations tend to be highly nonlinear and intricate in comparison with those of a Newtonian fluid.…”

Section: Introductionmentioning

confidence: 99%

An unsteady MHD Maxwell nanofluid flow with convective boundary conditions using spectral local linearization method

Sithole¹,

Mondal²,

Sibanda³

et al. 2017

Open Physics

View full text Add to dashboard Cite

Abstract:The main focus of this study is on unsteady Maxwell nanofluid flow over a shrinking surface with convective and slip boundary conditions. The objective is to give an evaluation of the impact and significance of Brownian motion and thermophoresis when the nanofluid particle volume fraction flux at the boundary is zero. The transformed equations are solved numerically using the spectral local linearization method. We present an analysis of the residual errors to show the accuracy and convergence of the spectral local linearization method. We explore the effect of magnetic field and thermophoresis parameters on the heat transfer rate. We show, among other results, that an increase in particle Brownian motion leads to a decrease in the concentration profiles but concentration profiles increase with the increasing value of thermophoresis parameter

show abstract

Flow of non‐newtonian fluids in porous media

Cited by 123 publications

References 153 publications

Microfluidic systems for the analysis of viscoelastic fluid flow phenomena in porous media

Microfluidic systems for the analysis of viscoelastic fluid flow phenomena in porous media

Flow of non‐Newtonian fluids in converging–diverging rigid tubes

An unsteady MHD Maxwell nanofluid flow with convective boundary conditions using spectral local linearization method

Contact Info

Product

Resources

About