Table 1: Computational domains for the 2π/10, 2π/70, 2π/80 and 2π/90 cases. The parameters are the azimuthal division number β, the radial, azimuthal and wall-normal grid numbers Nr, and Nz, respectively, and the grid resolutions ∆r, ∆θ, z₀ and a.

	β	(r,θ, z)	Nr × Nθ × Nz	(∆r,∆θ,z0 ,a)
	10	r [330,751]θz [0,22.4]	422 × 469 × 50	∆r = 1∆θ = z0 = 0.05, (a = 1.0750)
	70	r [330,751]θz [0,22.4]	422 × 73 × 50	∆r = 1∆θ = z0 = 0.05, (a = 1.0750)
	80	r [330,751]θz [0,22.4]	422 × 61 × 50	∆r = 1∆θ = z0 = 0.05, (a = 1.0750)
	90	r [330,751]θz [0,22.4]	422 × 61 × 50	∆r = 1∆θ = z0 = 0.05, (a = 1.0750)