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Open AccessArticle

Inhomogeneous Flow of Wormlike Micelles: Predictions of the Generalized BMP Model with Normal Stresses

1
Departamentos de Física e Ingeniería Química, Universidad de Guadalajara, Blvd. M. García Barragán 1451, Guadalajara 44430, Jal., Mexico
2
Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Ciudad Universitaria, Ciudad de México 04510, Mexico
*
Author to whom correspondence should be addressed.
Fluids 2019, 4(1), 45; https://doi.org/10.3390/fluids4010045
Received: 26 December 2018 / Revised: 26 February 2019 / Accepted: 2 March 2019 / Published: 8 March 2019
(This article belongs to the Special Issue Advances in Experimental and Computational Rheology)
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Abstract

In this work, we examine the shear-banding flow in polymer-like micellar solutions with the generalized Bautista-Manero-Puig (BMP) model. The couplings between flow, structural parameters, and diffusion naturally arise in this model, derived from the extended irreversible thermodynamics (EIT) formalism. Full tensorial expressions derived from the constitutive equations of the model, in addition to the conservation equations, apply for the case of simple shear flow, in which gradients of the parameter representing the structure of the system and concentration vary in the velocity gradient direction. The model predicts shear-banding, concentration gradients, and jumps in the normal stresses across the interface in shear-banding flows. View Full-Text
Keywords: shear-banding flow; BMP model; normal stresses shear-banding flow; BMP model; normal stresses
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García-Sandoval, J.P.; Bautista, F.; Puig, J.E.; Manero, O. Inhomogeneous Flow of Wormlike Micelles: Predictions of the Generalized BMP Model with Normal Stresses. Fluids 2019, 4, 45.

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