WaveBinSpectrum

The WaveBinSpectrum class provides an interface for handling 2-D directional wave spectra. WaveSpectrum extends DirectionalBinSpectrum, and contains spectrum density as a function of frequency, binned by direction.

\[\sum_{i=0}^n{S_{\zeta, i}(\omega, \delta\left(\theta - \theta_i\right))}\]

The WaveSpectrum is initialized with a frequency list (1-D array), a direction list (1-D array) and corresponding spectrum density values, binned by direction (2-D array).

import numpy as np
import waveresponse as wr


freq = np.linspace(0.0, 1.0, 50)
dirs = np.linspace(0.0, 360.0, endpoint=False)
vals = np.random.random((len(freq), len(dirs)))

wave = wr.WaveBinSpectrum(
    freq,
    dirs,
    vals,
    freq_hz=True,
    degrees=True,
    clockwise=False,
    waves_coming_from=False,
)

The WaveBinSpectrum class extends the DirectionalBinSpectrum class with the following:

Calculate the significant wave height, Hs:

wave.hs

Calculate the wave peak period, Tp:

wave.tp

Calculate the wave peak direction:

wave.dirp()

Calculate the mean wave direction:

wave.dirm()