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. Author manuscript; available in PMC: 2018 Oct 1.
Published in final edited form as: J Comput Phys. 2017 Jul 18;348:433–459. doi: 10.1016/j.jcp.2017.07.025

Fig. 1.

Fig. 1

Radial displacement versus dilation pressure. The radial displacement is measured at point (R = 0.5, Θ = 0, Z = 0.5). Curve Zhu et al.: results from Zhu et al. [25]. Curve Implicit FE: results based on the implicit FE method. Curve IB-FE transient: results based on our immersed boundary finite element (IB-FE) method, in which we have a non-zero fluid source during the entire simulation. Points IB-FE equilibrium: results when the entire fluid-structure system at different dilation level achieves equilibrium. The equilibrium at a certain dilation level is achieved by first dilating the tube for some time and then turning off the fluid source to let the velocity field vanish.