Research Article
Frictional Pressure Drop and Liquid Holdup of Churn Flow in Vertical Pipes with Different Viscosities
Table 3
Errors of liquid holdup for four different models.
| | Error | Beggs [24] | Xiao [26] | Choi [28] | Liu [30] |
| | AAPE (%) | 65.1 | 32.6 | 28.1 | 9.6 | | APE (%) | -65.1 | -32.6 | 22.5 | 5.9 |
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