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Froude Speed Scaling - Model to Ship

Corresponding ship speed for a given model speed at Froude similarity - V_s = V_m · √(L_s/L_m).

FroudeModelScaling
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Formula, assumptions, and limits

Vs=Vmλ,λ=Ls/LmV_s = V_m \sqrt{\lambda}, \quad \lambda = L_s/L_m
SymbolMeaningUnit
VmV_mModel velocitym/s
LmL_mModel LWLm
LsL_sShip LWLm

Source: ITTC - Recommended Procedures 7.5-02

In short

Corresponding ship speed for a given model speed at Froude similarity - V_s = V_m \u00b7 \u221a(L_s/L_m).

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