A New Radial Spoiler for Suppressing Vortex-Induced Vibration of a Tubular Tower and Its Practical Design Method

Table 3

Simulation scheme.

Case number	Factors
	1	1	1	1
2	2	5	1
3	3	4	1
4	4	3	1
5	5	2	1
6	1	2	2
7	2	1	2
8	3	5	2
9	4	4	2
10	5	3	2
11	1	3	3
12	2	2	3
13	3	1	3
14	4	5	3
15	5	4	3
16	1	4	4
17	2	3	4
18	3	2	4
19	4	1	4
20	5	5	4
21	1	5	5
22	2	4	5
23	3	3	5
24	4	2	5
25	5	1	5