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Title: A microstructure model for viscoelastic-thixotropic fluids
Authors: Le-Cao K. 
Phan-Thien N. 
Mai-Duy N.
Ooi S.K. 
Lee A.C. 
Khoo B.C. 
Keywords: Structural kinematic model
Phan-Thien Tanner model
yield stress
Issue Date: 2020
Publisher: American Institute of Physics Inc.
Citation: Le-Cao K., Phan-Thien N., Mai-Duy N., Ooi S.K., Lee A.C., Khoo B.C. (2020/12/29). A microstructure model for viscoelastic-thixotropic fluids. Physics of Fluids 32 (12) : 123106. ScholarBank@NUS Repository.
Abstract: A microstructure model to describe the viscoelasticity and thixotropy properties of complex fluids is proposed. The model is based on the Lodge-Yamamoto network theory and is an extension of the Phan-Thien-Tanner model, with a kinetic process in which specific forms of creation and destruction rates are assumed. The final equation is simple with a small number of empirical parameters required and can be conveniently employed in engineering simulations. The predictions based on the model in a variety of shear and oscillatory shear flows are given. The stress response obtained from the model prediction agrees well with experiments on both shear and oscillatory flow histories. © 2020 Author(s).
Source Title: Physics of Fluids
ISSN: 10706631
DOI: 10.1063/5.0033199
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