JONSWAP Spectrum (PSD) vs Wave Time History
JONSWAP 스펙트럼 (PSD) vs 파랑의 시간이력

1. Spectrum Parameters

Wind Speed at 10m height (U₁₀, m/s) Fetch Length (F, m): Peak Enhancement Factor (gamma):

2. Time History Parameters

Sampling Frequency (fs, Hz):
Ex) dt = 1/fs = 1/(Scaling Frequency) = 1/25 = 0.04 sec Scaling Time :
Ex) dt = 1/fs*sqrt(Scaling Time) = 1/25*sqrt(64) = 0.04*8 = 0.32 sec Simulation Time (hours):
Ex) nt = No. of time steps = simulTime * 3600 / dt = 3*3600/0.32 = 33,750

Generate Spectrum

Time history data:

Reference (참고 자료)

(2) JONSWAP 스펙트럼 (Ref: 제8장 파랑하중)