Parameters of the step emulsification models used in this study.
| Groups of different step width | Channel length l1 (μm) | Channel height h (μm) | Terrace length l2 (μm) | Terrace width, W (μm) | Reservoir size, W × L × H (μm) | Number of cells |
|---|---|---|---|---|---|---|
| 1 | 30 | 10 | 50 | 70 | 70 × 100 × 110 | 120 479 |
| 2 | 90 | 90 × 100 × 110 | 153 009 | |||
| 3 | 110 | 110 × 100 × 110 | 185 539 | |||
| 4a | 150 | 150 × 100 × 110 | 228 664 | |||
| 5 | 170 | 170 × 100 × 110 | 233 559 | |||
| 6 | 190 | 190 × 100 × 110 | 288 964 | |||
| 7 | 210 | 210 × 100 × 110 | 318 644 | |||
| 8 | 230 | 230 × 100 × 110 | 338 925 |
a
Group 4 is the default size for contact angle simulation, as shown in Fig. 4.