101 



Crest of a shallow water wave 

 xio-^ gauge 1 



-0.4^^^-0.3 -0.2 -0.1 g^^0g^3 0.1 0.2_^^ 0.4 

 5 



-0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 



Figure 5.16: Free surface boundary condition errors for a shallow 

 water wave at order 2 



Crest of a shallow water wave 



-0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 



° ^ 



-0.4 -0.3 -0.2 -0.1 0.1 0.2 0.3 0.4 



Figure 5.17: Free surface and velocities at the center of the array 

 for a shallow water wave at order 2 



