Table 6 Numerical simulation cases

$\left\{\begin{array}{c}\hfill \left(\mathrm{i}\right)h=0.10\hfill \\ \hfill \left(\mathrm{ii}\right)h=0.05\hfill \\ \hfill \left(\mathrm{iii}\right)h=0.01\hfill \end{array}\right.$

$\left\{\begin{array}{c}\hfill \left(\mathrm{i}\right)\xi =0.05\hfill \\ \hfill \left(\mathrm{ii}\right)\xi =0.03\hfill \\ \hfill \left(\mathrm{iii}\right)\xi =0.01\hfill \end{array}\right.$

while damping coefficient c = 0.2 π is fixed to deliver a non-dimensional damping ratio ξ = 0.05.

while the time step is fixed as h = 0.02.