Tuesday, February 28, 2012

1202.5843 (François Boulogne et al.)

Elasto-plastic flow of a foam around an obstacle    [PDF]

François Boulogne, Simon Cox
We simulate quasistatic flows of an ideal two-dimensional monodisperse foam around different obstacles, both symmetric and asymmetric, in a channel. We record both pressure and network contributions to the drag and lift forces, and study them as a function of obstacle geometry. We show that the drag force increases linearly with the cross section of an obstacles. The lift on an asymmetric aerofoil-like shape is negative and increases with its arc length, mainly due to the pressure contribution.
View original: http://arxiv.org/abs/1202.5843

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