ShipCalculators.com

Pierson-Moskowitz - Peak Frequency

Peak frequency ω_p of the Pierson-Moskowitz fully-developed spectrum - used as input for strip-theory motion analysis.

PMFrequencyWave
Peak ω_p
0.431rad/s
Peak period T_p
14.6s

Formula, assumptions, and limits

ωp=0.879 g/U19.5\omega_p = 0.879\,g / U_{19.5}
SymbolMeaningUnit
U19.5U_{19.5}Wind speed at 19.5 mm/s
ggGravitym/s²

Source: Pierson & Moskowitz - JGR 1964

In short

Peak frequency \u03c9_p of the Pierson-Moskowitz fully-developed spectrum - used as input for strip-theory motion analysis.

Learn the theory Seakeeping: Ship Performance in Waves