Comparison of force, impulse and power from PIV and EBT
| . | PIV coefficient . | Dimensional . | EBT coefficient . | Dimensional . | F1,2 . | P . |
|---|---|---|---|---|---|---|
| Lateral force* | 0.097±0.001 | 4.64 mN | 0.090±0.003 | 4.31 mN | 0.490 | 0.556 |
| Lateral impulse | 0.0217±0.0004 | 0.76 mN s | 0.0062±0.0001 | 0.216 mN s | 36.18 | 0.027 |
| Thrust force† | 0.0166±0.0004 | 0.79 mN | ||||
| Max. lateral power | 0.0297±0.0007 | 391 μW | 0.0286±0.0005 | 376 μW | 0.103 | 0.778 |
| Mean lateral power | 0.0151±0.0003 | 198 μW | 0.0148±0.0003 | 195 μW | 0.200 | 0.699 |
| Max. total power | 0.065±0.003 | 855 μW | 0.0286±0.0005 | 376 μW | 16.25 | 0.056 |
| Mean total power | 0.023±0.002 | 303 μW | 0.0148±0.0003 | 195 μW | 0.292 | 0.643 |
| . | PIV coefficient . | Dimensional . | EBT coefficient . | Dimensional . | F1,2 . | P . |
|---|---|---|---|---|---|---|
| Lateral force* | 0.097±0.001 | 4.64 mN | 0.090±0.003 | 4.31 mN | 0.490 | 0.556 |
| Lateral impulse | 0.0217±0.0004 | 0.76 mN s | 0.0062±0.0001 | 0.216 mN s | 36.18 | 0.027 |
| Thrust force† | 0.0166±0.0004 | 0.79 mN | ||||
| Max. lateral power | 0.0297±0.0007 | 391 μW | 0.0286±0.0005 | 376 μW | 0.103 | 0.778 |
| Mean lateral power | 0.0151±0.0003 | 198 μW | 0.0148±0.0003 | 195 μW | 0.200 | 0.699 |
| Max. total power | 0.065±0.003 | 855 μW | 0.0286±0.0005 | 376 μW | 16.25 | 0.056 |
| Mean total power | 0.023±0.002 | 303 μW | 0.0148±0.0003 | 195 μW | 0.292 | 0.643 |
Bold indicates a significant difference.
P values are calculated including individuals as a random effect. The individual was a significant effect in all comparisons(P<0.001) except for lateral force (P<0.090). N=118.
Dimensional values are calculated from the coefficients for a 20 cm-long eel.
Compares mean lateral force from particle image velocimetry (PIV) to peak value from elongated body theory (EBT)
Thrust force could only be calculated using EBT