Holtrop - Wave Resistance Estimate
Approximate wave-making resistance R_W at low Froude (Fn < 0.4) using Holtrop's regression simplification - the dominant resistance contribution in the hump region.
Froude number
0.171 -
Wave resistance
84.8kN
Formula, assumptions, and limits
Heavily simplified; full Holtrop uses c1, c2, c5, m1, m2, λ. Wave resistance grows rapidly near Fn = 0.3 ("hump"). For Fn > 0.4 extrapolation not valid - use Holtrop high-speed mode.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Froude number | - | V/√(gL) | |
| Wave resistance coefficient | - | regression fit |