Table 2. Individual values of speed specific drag as calculated based on the different methods. Data are means (± SD).
|
Kp
(kg·m-1) |
kaPL
(kg.m-1) |
kaST
(kg·m-1) |
kaST
fit ((kg·m-1) |
| S1 |
23.1 (±3.6) |
34.7 (±3.6) |
42.9 (±9.6) |
36.6 (±2.5) |
| S2 |
25.5
(±3.4) |
38.2
(±3.4) |
39.6
(±1.7) |
40.1
(±1.0) |
| S3 |
25.0 (±3.3) |
37.5 (±3.3) |
38.8 (±5.9) |
39.5 (±2.5) |
| S4 |
24.9
(±3.7) |
37.3
(±3.7) |
39.9
(±7.3) |
38.0
(±3.6) |
| S5 |
26.9 (±4.0) |
40.4 (±4.0) |
38.1 (±8.2) |
37.8 (±5.7) |
| S6 |
24.3
(±3.0) |
36.5
(±3.0) |
35.0
(±11.0) |
43.4
(±4.0) |
| S7 |
22.1 (±4.1) |
33.2 (±4.1) |
32.5 (±5.2) |
41.8 (±1.5) |
| S8 |
27.4
(±3.9) |
41.1
(±3.9) |
35.3
(±4.6) |
42.7
(±1.4) |
| S9 |
21.0 (±3.9) |
31.5 (±3.9) |
28.6 (±7.2) |
42.4 (±1.2) |
| S10 |
28.2
(±2.4) |
42.3
(±2.4) |
55.8
(±10.3) |
37.1
(±1.7) |
| S11 |
24.1 (±4.1) |
36.2 (±4.1) |
33.7 (±8.6) |
41.8 (±4.6) |
| S12 |
25.4
(±3.5) |
38.0
(±3.5) |
30.8
(±6.5) |
38.9
(±2.5) |
| S13 |
19.6 (±9.7) |
29.3 (±9.7) |
27.5 (±10.8) |
43.9 (±1.7) |
| S14 |
26.6 (±3.7) |
39.9 (±3.7) |
44.1 (±5.2) |
40.4 (±3.7) |
kp: passive drag coefficient; ka
PL = active drag coefficient, as determined by means of the “planimetric method”; ka
ST = active drag coefficient, as determined by means of the “residual thrust method”; ka
STfit = active drag coefficient, as determined by means of the “residual thrust method” (model fitting).
