Table 4 The experimental design and results.
No. | Parameters | Repose angleθ/(°) | |||
|---|---|---|---|---|---|
CORO−p | COSO−O | COSO−p | CODO−O | ||
1 | 0 | 0 | 2 | 0 | 22.71 |
2 | −1 | 1 | −1 | −1 | 16.05 |
3 | −1 | 1 | −1 | 1 | 24.72 |
4 | −1 | −1 | −1 | −1 | 17.71 |
5 | 1 | 1 | 1 | 1 | 26.86 |
6 | −1 | 1 | 1 | −1 | 19.88 |
7 | 0 | 0 | 0 | 0 | 21.81 |
8 | 1 | 1 | −1 | 1 | 23.41 |
9 | 0 | 0 | 0 | 0 | 17.79 |
10 | 1 | −1 | 1 | 1 | 21.43 |
11 | 0 | 0 | 0 | 0 | 22.98 |
12 | −2 | 0 | 0 | 0 | 19.53 |
13 | 1 | −1 | 1 | −1 | 18.04 |
14 | 0 | 2 | 0 | 0 | 25.66 |
15 | −1 | −1 | −1 | 1 | 17.55 |
16 | 2 | 0 | 0 | 0 | 21.78 |
17 | −1 | −1 | 1 | 1 | 28.81 |
18 | 0 | 0 | 0 | 0 | 19.48 |
19 | −1 | 1 | 1 | 1 | 35.15 |
20 | 0 | 0 | −2 | 0 | 21.09 |
21 | 1 | −1 | −1 | −1 | 28.24 |
22 | 1 | 1 | 1 | −1 | 20.76 |
23 | 1 | 1 | −1 | −1 | 24.64 |
24 | 0 | 0 | 0 | 2 | 23.67 |
25 | 1 | −1 | −1 | 1 | 21.44 |
26 | 0 | 0 | 0 | 0 | 19.38 |
27 | 0 | 0 | 0 | −2 | 15.84 |
28 | 0 | 0 | 0 | 0 | 20.08 |
29 | 0 | −2 | 0 | 0 | 22.53 |
30 | −1 | −1 | 1 | −1 | 17.01 |
