in Titre de série : | Zeitschrift für angewandte Mathematik und Physik (ZAMP), Vol.42, No.2 | Titre : | Étude de l'établissement d'un jet liquide laminaire émergeant d'une conduite cylindrique verticale semi-infinie et soumis à l'influence de la gravité | Type de document : | articles et extraits | Auteurs : | C. Philippe, Auteur ; DUMARGUE P., Auteur | Année de publication : | 1991 | Importance : | P. 227-242 | Langues : | Français (fre) | Résumé : | This paper is concerned with the laminar flow of a free liquid jet emerging from a semi infinite vertical cylindrical pipe at high Reynolds and Froude numbers. In that case, excepting the capillary tubes, the Weber number is sufficiently high so that surface tension effects may be neglected. The general equations are simplified by a boundary layer analysis and solved by using the matched asymptotic expansion''s method. Approximate semi analytical solutions are presented showing parameters of similarity. These solutions predict the velocity distribution and the jet shape under the influence of body and viscous forces. Experimental results obtained by jet photography and holographic visualization of the velocity field confirm the accuracy of the calculations. |
in Zeitschrift für angewandte Mathematik und Physik (ZAMP), Vol.42, No.2. Étude de l'établissement d'un jet liquide laminaire émergeant d'une conduite cylindrique verticale semi-infinie et soumis à l'influence de la gravité [articles et extraits] / C. Philippe, Auteur ; DUMARGUE P., Auteur . - 1991 . - P. 227-242. Langues : Français ( fre) Résumé : | This paper is concerned with the laminar flow of a free liquid jet emerging from a semi infinite vertical cylindrical pipe at high Reynolds and Froude numbers. In that case, excepting the capillary tubes, the Weber number is sufficiently high so that surface tension effects may be neglected. The general equations are simplified by a boundary layer analysis and solved by using the matched asymptotic expansion''s method. Approximate semi analytical solutions are presented showing parameters of similarity. These solutions predict the velocity distribution and the jet shape under the influence of body and viscous forces. Experimental results obtained by jet photography and holographic visualization of the velocity field confirm the accuracy of the calculations. |
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