Non-Newtonian behaviour of the gyroid mesophase: A lattice-Boltzmann study
نویسندگان
چکیده
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. © 2006 Published by Elsevier B.V. on behalf of IMACS. PACS: 47.11.+j; 82.70.Uv; 83.60.−a
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ورودعنوان ژورنال:
- Mathematics and Computers in Simulation
دوره 72 شماره
صفحات -
تاریخ انتشار 2006