Highly Accurate Solution of Limit Cycle Oscillation of an Airfoil in Subsonic Flow

Table 3

Comparisons of the amplitudes and frequencies given by the HAM Pade approximations (𝜆=−2) with the numerical solutions, where 𝑈^∗=2𝑈^∗𝐿.

[m, n] HAM Pade	Frequency	Pitch
[5,5]	0.067011196	0.221689949
HAM 10	0.0730367	0.156371061
[8,8]	0.06595560	0.21807163
16	0.5207506	3.48085267
[10,10]	0.0658774	0.21854332
HAM 20	7.63500	−28.477895
HAM N = 120,	0.0657829	0.2185689