Study on Fluid-Induced Vibration Power Harvesting of Square Columns under Different Attack Angles

Table 3

Comparison of Strouhal Number with different attack angle.

U (m/s)	Strouhal Number
	15°	75°	30°	60°
0.05049	0.1682	0.1682	0.1832	0.1831
0.0561	0.1714	0.1714	0.1873	0.1872
0.06278	0.1743	0.1742	0.1896	0.1896
0.07293	0.1746	0.1746	0.1922	0.1922