tStatic constant time/d | Dispensing rate% | ρ/(g∙cm−3) | SSSI | ||
upper layer | Middle level | Lower level | |||
0 | 0 | 1.50 | 1.50 | 1.50 | 0 |
1 | 1.1 | 1.49 | 1.51 | 1.54 | 0.016 |
3 | 3.6 | 1.48 | 1.52 | 1.59 | 0.045 |
7 | 6.0 | 1.47 | 1.54 | 1.63 | 0.072 |
15 | 9.8 | 1.46 | 1.56 | 1.67 | 0.101 |