Wake Fraction - Taylor Approximation
Wake fraction estimate using Taylor's empirical relationship with block coefficient - preliminary propeller-design input when model-test data is unavailable.
Taylor wake fraction
0.350 -
Formula, assumptions, and limits
Twin-screw wake considerably lower than single due to better flow into off-centre propellers. Harvald or Holtrop methods refine for forebody and stern-type corrections.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Block coefficient | - | hydrostatics | |
| Taylor wake fraction | - | Taylor (1943) |