Air resistance force on above-water superstructure given projected frontal area, drag coefficient, and relative wind speed.
Formula
$$ F_A = \tfrac{1}{2} \rho_a \cdot C_D \cdot A \cdot v^2 $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $C_D$ | Drag coefficient | - | OCIMF / Isherwood |
| $A$ | Frontal projected area | m² | GA drawing |
| $v$ | Relative wind | m/s | anemometer |
Sources
- Isherwood R.M. - 1973.
- OCIMF Prediction of Wind & Current Loads on VLCCs.