Two prolate elements (region 1: lambda tricubic Hermite; mu,theta trilinear; hydrostatic pressure nodally interpolated) of incompressible pole zero material is inflated to 1kPa. Then inflated prolate is initially contracted isovolumically then ejection is simulated.
NOTE: Adding the cavity elements to the mesh changes the scale factors for the wall elements, because they are "Calculated from arithmetic mean arc length". This means that the converged solution for the passive wall inflation problem is not a converged solutionn for the coupled problem if the new scale factors are used. To get around this you willl see that the scale factors are written out (saved) for the wall region before defining the cavity elements, after which the wall scale factors are re-read. There is a check that the passive inflation solution is indeed a converge soln for the coupled problem.