Experimental Study on the Spanwise Correlation of Vortex-Induced Force Using Large-Scale Section Model

Table 4

Fitted parameters values of spanwise correlation coefficients of vortex-induced force.

Wind speed point in lock-in region	Fitted parameter ci	Fitted parameter di	Spanwise correlation length 1/ci
Starting point (V1)	0.530	0.136	1.887
First ascending point (V2)	0.277	0.771	3.610
Second ascending point (V3)	0.278	0.794	3.597
Third ascending point (V4)	0.275	0.808	3.636
Extreme amplitude point (V5)	0.285	0.510	3.509
Descending point (V6)	0.299	0.412	3.339
Ending point (V7)	0.375	0.134	2.667