Table 2. Calculated drag coefficients of the 3-D realistic model of dolphin and contributions of each part.
Re | CD | Friction CD | Pressure CD | CD by body | CD by flippers | CD by dorsal fin | CD by fluke |
---|---|---|---|---|---|---|---|
1 × 106 | 6.1 × 10−3 (100%) | 4.4 × 10−3 (72%) | 1.7 × 10−3 (28%) | (61.7%) | (14.0%) | (9.5%) | (14.8%) |
1 × 107 | 4.7 × 10−3 (100%) | 3.2 × 10−3 (67%) | 1.6 × 10−3 (33%) | (57.1%) | (16.0%) | (10.2%) | (16.7%) |
2 × 107 | 4.3 × 10−3 (100%) | 2.8 × 10−3 (65%) | 1.5 × 10−3 (35%) | (55.5%) | (16.8%) | (10.4%) | (17.2%) |
3 × 107 | 4.2 × 10−3 (100%) | 2.7 × 10−3 (64%) | 1.5 × 10−3 (36%) | (54.6%) | (17.2%) | (10.6%) | (17.6%) |
4 × 107 | 4.0 × 10−3 (100%) | 2.6 × 10−3 (63%) | 1.5 × 10−3 (37%) | (54.0%) | (17.5%) | (10.7%) | (17.8%) |