Table 1
The shape factors defined by various models.
| Researcher(s) | 1D | 2D | 3D |
|---|---|---|---|
| Warren and Root (1963) | 12/L2 | 32/L2 | 60/L2 |
| Kazemi et al. (1976) | 4/L2 | 8/L2 | 12/L2 |
| Lim and Aziz (1995) | π2/L2 | 18.17/L2 | 25.67/L2 |
| This paper (DT = 1.1, λmax = 0.15 mm) | 11.35/L2.1 | 20.38/L2.1 | 24.77/L2.1 |