1Department of Mechanical Engineering, Imam Khomeini Naval University, Nowshahr, Iran
2Marine Hydrokinetic Energy Group. Department of Maritime Engineering, Amirkabir University of Technology (AUT), Tehran, Iran
3School of Ocean Engineering, Harbin Institute of Technology (HIT), Weihai, China
American Journal of Energy Research.
2026,
Vol. 14 No. 1, 117-123
DOI: 10.12691/ajer-14-1-2
Copyright © 2026 Science and Education PublishingCite this paper: Mehrshad Seraj, Hassan Ghassemi, Jabbar Firouzi. Numerical Investigation of Wave Power on the JONSWAP Spectrum in Deep and Finite Waters.
American Journal of Energy Research. 2026; 14(1):117-123. doi: 10.12691/ajer-14-1-2.
Correspondence to: Mehrshad Seraj, Department of Mechanical Engineering, Imam Khomeini Naval University, Nowshahr, Iran. Email:
mehrshadseraj997@gmail.comAbstract
A comprehensive numerical investigation of ocean wave power characteristics based on the JONSWAP spectrum was carried out using MATLAB simulations. The study evaluates spectral moments, characteristic wave periods, and depth-dependent energy transmission for different peak enhancement factor (γ) under both deep and finite water conditions. In addition to irregular sea states represented by the JONSWAP spectrum, regular (monochromatic) wave components were also analyzed to compare their power propagation behavior. Both spectral integration and the approximate formula were implemented to estimate the wave power across a wide range of depths. The computed results demonstrate that increasing γ leads to a narrower and more energetic spectrum, significantly affecting mean wave periods and power potential. Furthermore, the wave celerity modification coefficient (Ch). The outcomes reveal a strong correlation between spectral shape, wave regularity, and power transmission, providing valuable insights for accurate assessment of wave energy resources and design optimization of wave energy converters.
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