The Technique of MIEELDLD in Computational Aeroacoustics

Table 6

Comparing the dispersive properties for two temporal discretisation methods TAM and TAM-MODIFIED in terms of number of points per wavelength (to 4 d.p).

Method	Accuracy	Max. value of 𝜔𝑘	No. of pts per wavelength
TAM	|ℜ(𝜛𝑘)−𝜔𝑘|𝜋≤5×10^−3	0.5913	10.6267
TAM-MODIFIED	|ℜ(𝜛𝑘)−𝜔𝑘|𝜋≤5×10^−3	0.6280	10.0050
TAM	|ℜ(𝜛𝑘)−𝜔𝑘|𝜋≤5×10^−4	0.3461	18.1565
TAM-MODIFIED	|ℜ(𝜛𝑘)−𝜔𝑘|𝜋≤5×10^−4	0.3570	17.6002