Non-Newtonian behaviour of the gyroid mesophase: A lattice-Boltzmann study

G. Giupponi and P.V. Coveney

Mathematics and Computers in Simulation (MATCOM), 2006, vol. 72, issue 2, 124-127

Abstract: We use a lattice-Boltzmann (LB) kinetic scheme for modelling amphiphilic mixtures to impose Couette flow on self-assembled gyroid mesophase. We report evidence of non-Newtonian behaviour (“shear thinning”) and we show that the particular lack of inversion symmetry which characterizes the gyroid unit cell does not quantitatively affect the flow dynamics beyond a certain predictable shear velocity threshold. This purely kinetic approach is of general importance for the modelling and simulation of complex fluid flows in situations when rheological properties cannot be predicted a priori.

Keywords: Computational method in fluid dynamics; Amphiphilic systems; Rheology; Material behaviour (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:72:y:2006:i:2:p:124-127

DOI: 10.1016/j.matcom.2006.05.035

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