WABED (Wave Action Balance Equation with Diffraction) is a 2-D coastal spectral wave process model and used in the development of a practice-oriented random wave prediction for coastal engineering studies at inlets, navigation projects, and wave-structure interactions. Wave diffraction is implemented by adding a term derived from the parabolic wave equation to the wave action balance equation. This paper describes the evaluation of the modeling capability to represent wave diffraction available in the WABED, which is accomplished by testing the present model for diffraction-prone cases such as the wave field of a gap in an infinitely long breakwater and that over an elliptical shoal. Computations are compared with experimental observations and Sommerfeld’s analytical solutions. Comparisons indicate that WABED performs reasonable well in these conditions and is capable of predicting wave diffraction effectively together with refraction and shoaling.
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ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering
May 31–June 5, 2009
Honolulu, Hawaii, USA
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4344-4
PROCEEDINGS PAPER
Verifications of Diffraction Modeling Capability in a Coastal Spectral Wave Model
Jinhai Zheng,
Jinhai Zheng
Hohai University, Nanjing, China
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Yu Tang
Yu Tang
Hohai University, Nanjing, China
Search for other works by this author on:
Jinhai Zheng
Hohai University, Nanjing, China
Yu Tang
Hohai University, Nanjing, China
Paper No:
OMAE2009-79004, pp. 1-6; 6 pages
Published Online:
February 16, 2010
Citation
Zheng, J, & Tang, Y. "Verifications of Diffraction Modeling Capability in a Coastal Spectral Wave Model." Proceedings of the ASME 2009 28th International Conference on Ocean, Offshore and Arctic Engineering. Volume 4: Ocean Engineering; Ocean Renewable Energy; Ocean Space Utilization, Parts A and B. Honolulu, Hawaii, USA. May 31–June 5, 2009. pp. 1-6. ASME. https://doi.org/10.1115/OMAE2009-79004
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