Pore-Scale Modeling of Non-Newtonian Flow in Porous Media: Modeling Non-Newtonian Flow in Porous Media

Sochi, Taha

ISBN 10: 3659951846 / ISBN 13: 9783659951848

Editore: LAP LAMBERT Academic Publishing, 2016

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Codice articolo 18404342776

Dati bibliografici

• Titolo: Pore-Scale Modeling of Non-Newtonian Flow in Porous Media: Modeling Non-Newtonian Flow in Porous Media
• Editore: LAP LAMBERT Academic Publishing
• Data di pubblicazione: 2016
• Lingua: Inglese
• ISBN 10: 3659951846
• ISBN 13: 9783659951848
• Rilegatura: Brossura
• Condizione: New

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Riassunto

The book investigates the flow of non-Newtonian fluids in porous media using pore-scale network modeling. Non-Newtonian fluids show very complex time and strain dependent behavior and may have initial yield stress. Their common feature is that they do not obey the simple Newtonian relation of proportionality between stress and rate of deformation. They are generally classified into three main categories: time-independent, time-dependent and viscoelastic. Two three-dimensional networks representing a sand pack and Berea sandstone were used. An iterative numerical technique is used to solve the pressure field and obtain the flow rate and apparent viscosity. The time-independent category is investigated using two fluid models: Ellis and Herschel-Bulkley. The analysis confirmed the reliability of the non-Newtonian network model used in this study. Good results are obtained, especially for the Ellis model, when comparing the network model results to experimental data sets found in the literature. The yield-stress phenomenon is also investigated and several numerical algorithms were developed and implemented to predict threshold yield pressure of the network.