Evaluation of quasi-steady theory applied to windborne flat plates in uniform flow / Bahareh Kordi in Journal of engineering mechanics, Vol. 135 N° 7 (Juillet 2009)  

Public ISBD [article]  inJournal of engineering mechanics > Vol. 135 N° 7 (Juillet 2009) . - pp. 657-668 Titre : Evaluation of quasi-steady theory applied to windborne flat plates in uniform flow Type de document : texte imprimé Auteurs : Bahareh Kordi, Auteur ; Gregory A. Kopp, Auteur Article en page(s) : pp. 657-668 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Wind loads Debris Aerodynamics Turbulence Plates Uniform flow. Résumé : This paper analyzes models based on the quasi-steady theory for the flight of windborne plate debris. It is shown that the effects of the rotational lift, drag, and pitching moment are important and are included in the model. The model was used with success to predict the behavior of thin, square plates in a uniform stream, based on comparisons with existing experimental data. In fact, some of the scatter in the existing experimental data was explained by the numerical results. It was also shown that the buoyancy parameter was the key parameter in determining initial flight speeds and normalization of spatial coordinates with this parameter collapsed the data well. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JENMDT&smode=strres [...] [article] Evaluation of quasi-steady theory applied to windborne flat plates in uniform flow [texte imprimé] / Bahareh Kordi, Auteur ; Gregory A. Kopp, Auteur . - pp. 657-668. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 135 N° 7 (Juillet 2009) . - pp. 657-668 Mots-clés : Wind loads Debris Aerodynamics Turbulence Plates Uniform flow. Résumé : This paper analyzes models based on the quasi-steady theory for the flight of windborne plate debris. It is shown that the effects of the rotational lift, drag, and pitching moment are important and are included in the model. The model was used with success to predict the behavior of thin, square plates in a uniform stream, based on comparisons with existing experimental data. In fact, some of the scatter in the existing experimental data was explained by the numerical results. It was also shown that the buoyancy parameter was the key parameter in determining initial flight speeds and normalization of spatial coordinates with this parameter collapsed the data well. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.aip.org/vsearch/servlet/VerityServlet?KEY=JENMDT&smode=strres [...]

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