Exterior bathymetric effects in elliptic harbor wave models

Vijay Panchang, W. Chen, B. Xu, K. Schlenker, Z. Demirbilek, M. Okihiro

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Traditional elliptic harbor wave models are based on the assumptions that the region outside the computational grid is of constant depth and that the exterior coastlines are collinear and fully reflecting. These assumptions, which are associated with the open boundary, are generally not met in practice. This paper demonstrates that the effects of exterior depth variations on model results can be substantial, leading to unreliable simulations even with sophisticated modern wave models. A technique is developed to overcome these limitations. It is based on a one-dimensional representation to better simulate the effects of the exterior bathymetry. The results of the one-dimensional model are then interfaced along the open boundary of a two-dimensional finite-element harbor wave model. The new model is tested against analytical solutions for the case of wave propagation on a sloping beach, which is a difficult problem for harbor models in use today. Excellent results are obtained, suggesting that improved representation of the cross-shore slopes while treating the open boundaries may enhance the usefulness of these models.

Original languageEnglish
Pages (from-to)71-78
Number of pages8
JournalJournal of Waterway, Port, Coastal and Ocean Engineering
Volume126
Issue number2
Publication statusPublished - 2000
Externally publishedYes

Fingerprint

Ports and harbors
harbor
Bathymetry
effect
Beaches
bathymetry
Wave propagation
wave propagation
beach
coast
simulation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology
  • Ocean Engineering

Cite this

Panchang, V., Chen, W., Xu, B., Schlenker, K., Demirbilek, Z., & Okihiro, M. (2000). Exterior bathymetric effects in elliptic harbor wave models. Journal of Waterway, Port, Coastal and Ocean Engineering, 126(2), 71-78.

Exterior bathymetric effects in elliptic harbor wave models. / Panchang, Vijay; Chen, W.; Xu, B.; Schlenker, K.; Demirbilek, Z.; Okihiro, M.

In: Journal of Waterway, Port, Coastal and Ocean Engineering, Vol. 126, No. 2, 2000, p. 71-78.

Research output: Contribution to journalArticle

Panchang, V, Chen, W, Xu, B, Schlenker, K, Demirbilek, Z & Okihiro, M 2000, 'Exterior bathymetric effects in elliptic harbor wave models', Journal of Waterway, Port, Coastal and Ocean Engineering, vol. 126, no. 2, pp. 71-78.
Panchang, Vijay ; Chen, W. ; Xu, B. ; Schlenker, K. ; Demirbilek, Z. ; Okihiro, M. / Exterior bathymetric effects in elliptic harbor wave models. In: Journal of Waterway, Port, Coastal and Ocean Engineering. 2000 ; Vol. 126, No. 2. pp. 71-78.
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