Application of a Beamforming Technique to the Measurement of Airfoil Leading Edge Noise

Table 3

Mean value (denoted by overline) and standard deviation 𝜎 of both the rms of the turbulent velocity fluctuations 𝑢_rms and the mean flow velocity 𝑈 of the measured data shown in Figure 7.

Grid	Airfoil	𝑢rms	𝜎𝑢rms	𝑈	𝜎𝑈
	(𝑟 [Pa s/m2])	[m/s]	[m/s]	[m/s]	[m/s]
PPS 12/2	∞	2.37	0.12	22.32	1.90
	1,000	2.42	0.11	23.36	1.32
	8,200	2.39	0.12	23.23	1.36
PPS 14/4	∞	3.00	0.14	21.75	1.48
	1,000	3.07	0.11	22.88	0.95
	8,200	3.09	0.13	22.97	1.15