Convergence in 3D Hybrid Elements

We constructed a blocky fish shape domain to test the Helmholtz solver with all the three-dimensional element types connected together. In figure 4.23 we show that the solution converges to the correct solution for the Helmholtz problem with increasing N.

  

Figure 4.23: Convergence for the Helmholtz problem on a mesh of hybrid elements. Dirichlet boundary conditions u=sin(x)sin(y)sin(z) and lambda = 10000.