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Hydrostatic versus nonhydrostatic euler-equation modeling of nonlinear internal waves / Wadzuk, Bridget M. in Journal of engineering mechanics, Vol. 135 N° 10 (Octobre 2009) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 135 N° 10 (Octobre 2009) . - pp. 1069-1080 Titre : Hydrostatic versus nonhydrostatic euler-equation modeling of nonlinear internal waves Type de document : texte imprimé Auteurs : Wadzuk, Bridget M., Auteur ; Hodges, Ben R., Auteur Année de publication : 2009 Article en page(s) : pp. 1069-1080 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Coastal  processes  Hydrodynamics  Internal  waves  Hydrologic  models. Résumé : Basin-scale internal waves are inherently nonhydrostatic; however, they are frequently resolved features in three-dimensional hydrostatic lake and coastal ocean models. Comparison of hydrostatic and nonhydrostatic formulations of the Centre for Water Research Estuary and Lake Computer Model provides insight into the similarities and differences between these representations of internal waves. Comparisons to prior laboratory experiments are used to demonstrate the expected wave evolution. The hydrostatic model cannot replicate basin-scale wave degeneration into a solitary wave train, whereas a nonhydrostatic model does represent the downscaling of energy. However, the hydrostatic model produces a nonlinear traveling borelike feature that has similarities to the mean evolution of the nonhydrostatic wave. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JENMDT&smode=strres [...] [article] Hydrostatic versus nonhydrostatic euler-equation modeling of nonlinear internal waves [texte imprimé] / Wadzuk, Bridget M., Auteur ; Hodges, Ben R., Auteur . - 2009 . - pp. 1069-1080. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 135 N° 10 (Octobre 2009) . - pp. 1069-1080 Mots-clés : Coastal  processes  Hydrodynamics  Internal  waves  Hydrologic  models. Résumé : Basin-scale internal waves are inherently nonhydrostatic; however, they are frequently resolved features in three-dimensional hydrostatic lake and coastal ocean models. Comparison of hydrostatic and nonhydrostatic formulations of the Centre for Water Research Estuary and Lake Computer Model provides insight into the similarities and differences between these representations of internal waves. Comparisons to prior laboratory experiments are used to demonstrate the expected wave evolution. The hydrostatic model cannot replicate basin-scale wave degeneration into a solitary wave train, whereas a nonhydrostatic model does represent the downscaling of energy. However, the hydrostatic model produces a nonlinear traveling borelike feature that has similarities to the mean evolution of the nonhydrostatic wave. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JENMDT&smode=strres [...]