scientimate.stokeswavesuperposition

Eta, t, Etaij = scientimate.stokeswavesuperposition(h, a, T, Phi, fs, duration=10, kCalcMethod='beji', dispout='no')

Description

Superposition second order stokes’ waves

Inputs

h

Mean water depth in (m)

a

Wave amplitude in (m)

T

Wave mean period in (s)

Phi

Phase (radian)

fs=32

Sample generation frequency (Hz), number of data points in one second

duration=10

Duration time that data will be generated in (s)

kCalcMethod=’beji’

Wave number calculation method

‘hunt’: Hunt (1979), ‘beji’: Beji (2013), ‘vatankhah’: Vatankhah and Aghashariatmadari (2013)

‘goda’: Goda (2010), ‘exact’: calculate exact value

dispout=’no’

Define to display outputs or not (‘yes’: display, ‘no’: not display)

Outputs

Eta

Water Surface Level Time Series in (m)

t

Time in (s)

Etaij

Separated Water Surface Level Time Series in (m)

Examples

import scientimate as sm
import numpy as np

Eta,t,Etaij=sm.stokeswavesuperposition(5,[0.1,0.2,0.3,0.4],[1,1.5,2,2.5],[np.pi/2,np.pi/4,np.pi/16,np.pi/32],32,10,'beji','yes')

Eta,t,Etaij=sm.stokeswavesuperposition(5,np.array([0.1,0.2,0.3,0.4]),np.array([1,1.5,2,2.5]),np.array([np.pi/2,np.pi/4,np.pi/16,np.pi/32]),32,10,'beji','yes')

References

Beji, S. (2013). Improved explicit approximation of linear dispersion relationship for gravity waves. Coastal Engineering, 73, 11-12.

Goda, Y. (2010). Random seas and design of maritime structures. World scientific.

Hunt, J. N. (1979). Direct solution of wave dispersion equation. Journal of the Waterway Port Coastal and Ocean Division, 105(4), 457-459.

Vatankhah, A. R., & Aghashariatmadari, Z. (2013). Improved explicit approximation of linear dispersion relationship for gravity waves: A discussion. Coastal engineering, 78, 21-22.