Numerical analysis of the fluid-solid interactions during steady and oscillatory flows of non-Newtonian fluids through deformable porous media
Article dans une revue avec comité de lecture
Date
2023-05Journal
Chemical Engineering Research and DesignAbstract
The flow of non-Newtonian fluids through evolving porous media is involved in important processes including blood flow and remediation of deformable aquifers. However, the effects of a moving solid boundary and the coupling between fluid rheology and solid deformation are still unclear. This study considers the steady and oscillatory flows of a yield stress fluid through a bundle of deformable channels. Simple semi-empirical expressions to predict the relationships between Darcy velocity and pressure gradient as a function of pore sizes, shear-rheology parameters and inlet pressure are developed, based on the results of innovative numerical simulations. The results show that channel deformation reduces the minimum pressure gradient required to induce the flow of a yield stress fluid through a porous medium, which results in lower values of Darcy-scale viscosity. For the considered conditions, macroscopic flow can be accurately predicted without a detailed knowledge of the hydraulic conductances of the deformed pores.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureRODRÍGUEZ DE CASTRO, Antonio; AHMADI-SENICHAULT, Azita; OMARI, Abdelaziz (Springer Verlag, 2018)The yield stress fluids porosimetry method (YSM)was recently presented as a simple and non-toxic potential alternative to the extensively used mercury intrusion porosimetry (MIP). The success of YSM heavily relies on the ...
-
Article dans une revue avec comité de lectureMACKAYA, Terence Emery; AHMADI-SENICHAULT, Azita; OMARI, Abdelaziz; RODRÍGUEZ DE CASTRO, Antonio (Springer Science and Business Media LLC, 2021)The aim of the present work is to investigate the flow rate/pressure gradient relationship for the flow of yield stress fluids through rectilinear capillaries of non-circular cross-sections. These capillaries very often ...
-
Article dans une revue avec comité de lectureAGNAOU, Mehrez; AHMADI-SENICHAULT, Azita; OMARI, Abdelaziz; RODRIGUEZ DE CASTRO, Antonio (Springer Science and Business Media LLC, 2019)With X-ray computed tomography still being flawed as a result of limitations in terms of spatial resolution and cost, toxic mercury intrusion porosimetry (MIP) is nowadays the prevailing technique to determine PSDs of most ...
-
Article dans une revue avec comité de lectureOMARI, Aziz; AHMADI-SENICHAULT, Azita; SAVIN, Sabine; MADARIAGA, Luis-Fernando; RODRIGUEZ DE CASTRO, Antonio (Springer Verlag, 2016)A new data analyzing method to characterize pore size distribution (PSD) of porous media was recently presented in the context of an international consensus on the need to develop alternatives to toxic mercury porosimetry. ...
-
Article dans une revue avec comité de lectureOMARI, Aziz; AHMADI-SENICHAULT, Azita; BRUNEAU, Denis; RODRIGUEZ DE CASTRO, Antonio (Springer Verlag, 2013)Abstract Current experimental methods used to determine pore size distributions (PSD) of porous media present several drawbacks such as toxicity of the employed fluids (e.g., mercury porosimetry). The theoretical basis of ...