Figure 12.

Phase II: The graph quantifies how quickly a periodic steady‐state is obtained for the displacement and flow field, u _s and v _f, depending on the refinement level in the fluid domain. Displacement and velocity, ${\mathit{u}}_s^{rl}$ and ${\mathit{v}}_f^{rl}$, at given fluid domain refinement level for an intermediate cycle k is compared with displacement and velocity, ${\mathit{u}}_s^{rl\mathrm{=3}}$ and ${\mathit{v}}_f^{rl=3}$, at rl‐3 for final cycle K = 10 using error norms given in Equations (14) and (15) and computing the mean for given cycle $k\left(\text{note},t_k^n=t_K^n\right)$