| ... | ... | @@ -17,3 +17,7 @@ Capillarity is the sole driving force. Liquid rises until the equilibrium betwee |
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The liquid rises until it reaches a steady state corresponding to a straight fluid front (zero curvature) and respects the equilibrium at triple points. The field represented in this video is viscosity.
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# Rise in a 2D hexagonal structure
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Gravity is neglect in this simulation. 4,000 time increments are performed with a time step of 2,00x10^-4 s. The liquid viscosity is 1.0 mPa.s, the air viscosity 1.0 µPa.s, the liquid/air surface tension 37.07 mN/m, the liquid/fiber energy 30.03 mN/m, and the air/fiber surface energy is 60.9 mN/m. The normal velocity is imposed to be vanishing using augmented Lagrangian technique at each node of the fiber boundaries. In addition, the normal velocity is also vanishing (Dirichlet condition) at the left and right boundaries of the computational domain. Finally, a normal stress of 1 Pa is considered as Neumann's condition at the bottom boundary. |
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