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Flow field visualization in structured packing using real time X-ray radiography / Scott A. Owens in Industrial & engineering chemistry research, Vol. 48 N° 7 (Avril 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3606–3618 Titre : Flow field visualization in structured packing using real time X-ray radiography Type de document : texte imprimé Auteurs : Scott A. Owens, Auteur ; Andreas Kossmann, Auteur ; John Farone, Auteur Année de publication : 2009 Article en page(s) : pp. 3606–3618 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Computational  fluid  dynamics  X-ray  radiography  Vapor  flow  Structured  packing Résumé : This research developed an experimental method for validating the CFD representation of single-phase (vapor) flow through structured packing. Real time X-ray radiography was used to visualize fluid streamlines in structured packing by tracking neutrally buoyant X-ray absorbing particles entrained in water flow. Flow through the packing was found to be uniform, whereas flow at the packing element joints exhibited chaotic flow and recirculation zones. Individual radiographs were analyzed to determine particle displacement and compute local velocities. This data could be used to validate existing computational fluid dynamics (CFD) models, including fluids other than water through the use of similarity theory. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801260s [article] Flow field visualization in structured packing using real time X-ray radiography [texte imprimé] / Scott A. Owens, Auteur ; Andreas Kossmann, Auteur ; John Farone, Auteur . - 2009 . - pp. 3606–3618. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3606–3618 Mots-clés : Computational  fluid  dynamics  X-ray  radiography  Vapor  flow  Structured  packing Résumé : This research developed an experimental method for validating the CFD representation of single-phase (vapor) flow through structured packing. Real time X-ray radiography was used to visualize fluid streamlines in structured packing by tracking neutrally buoyant X-ray absorbing particles entrained in water flow. Flow through the packing was found to be uniform, whereas flow at the packing element joints exhibited chaotic flow and recirculation zones. Individual radiographs were analyzed to determine particle displacement and compute local velocities. This data could be used to validate existing computational fluid dynamics (CFD) models, including fluids other than water through the use of similarity theory. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie801260s