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AIR CONDITIONING AND ELEMENTS OF REFRIGERATION. / BROWN P.
Titre : AIR CONDITIONING AND ELEMENTS OF REFRIGERATION. Type de document : document imprimé Auteurs : BROWN P., Auteur Editeur : New York : McGraw-Hill book company Année de publication : 1947 Importance : 644,00 Langues : Français (fre) Mots-clés : AIR CONDITIONING BASIC SCIENCE FLUID FLOW MEASUREMENT HEAT MECHANICAL REFRIGERATION PHYSICAL PROPERTIES PSYCHROMETRIC STUDY THERMODYNAMIC PROPERTIES Index. décimale : 44 Heat transfer AIR CONDITIONING AND ELEMENTS OF REFRIGERATION. [document imprimé] / BROWN P., Auteur . - New York : McGraw-Hill book company, 1947 . - 644,00.
Langues : Français (fre)
Mots-clés : AIR CONDITIONING BASIC SCIENCE FLUID FLOW MEASUREMENT HEAT MECHANICAL REFRIGERATION PHYSICAL PROPERTIES PSYCHROMETRIC STUDY THERMODYNAMIC PROPERTIES Index. décimale : 44 Heat transfer Réservation
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Code-barres Cote Support Localisation Section Disponibilité L0002 44 BRO Document imprimé IRPHE Indéterminé Disponible MATHEMATICAL METHODS FOR THE STUDY OF AUTOMATIC CONTROL SYSTEMS. / ZUBOV V.I.
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Code-barres Cote Support Localisation Section Disponibilité CB0085 02.30 ZUB Document imprimé IRPHE Bibliothèque de l'IRPHE Disponible Journal of fluids engineering, Vol.113, No.3. A theoretical and experimental study of the characterization of bubbles using light scattering interferometry / Alejandro Brena de la Rosa
in Journal of fluids engineering, ASME transactions
Titre de série : Journal of fluids engineering, Vol.113, No.3 Titre : A theoretical and experimental study of the characterization of bubbles using light scattering interferometry Type de document : articles et extraits Auteurs : Alejandro Brena de la Rosa, Auteur ; W. D. Bachalo, Auteur ; B. J. Weber, Auteur ; G. Wang, Auteur ; S. V. Sankar, Auteur Année de publication : 1991 Importance : p. 460-468 Langues : Anglais (eng) Mots-clés : Bubble Geometrical shape Velocity distribution Measurement method Optical method Laser interferometer Theoretical study Experimental study Résumé : This paper details the theoretical and experimental research undertaken to determine the size and morphology of bubbles, and their dynamic characteristics such as velocity, number density, and volume flux using light scattering interferometry.^The approach is based on the measurement of the phase difference of the interference fringe pattern which is produced when a particle passing through the probe volume defined by the intersection of two laser beams scatters light and interferes n the surrounding medium.^Detailed analytical/numerical modeling of the phase Doppler approach using Mie scattering theory and the geometrical optics approximation resulted in optimum light scattering collection angles and calibration curves for bubble diagnostics.^Using several techniques to generate a steady steam of monosize bubbles in the range from 6 {mu}m to 1800 {mu}m in diameter, the measurements obtained using the phase Doppler method were compared with direct photography yielding an agreement of better than 95 percent.^The morphology of spheroidal bubbles was also investigated by placing the transmitting and receiving optical units at specified locations with respect to the scatterers.
in Journal of fluids engineering, ASME transactions
Journal of fluids engineering, Vol.113, No.3. A theoretical and experimental study of the characterization of bubbles using light scattering interferometry [articles et extraits] / Alejandro Brena de la Rosa, Auteur ; W. D. Bachalo, Auteur ; B. J. Weber, Auteur ; G. Wang, Auteur ; S. V. Sankar, Auteur . - 1991 . - p. 460-468.
Langues : Anglais (eng)
Mots-clés : Bubble Geometrical shape Velocity distribution Measurement method Optical method Laser interferometer Theoretical study Experimental study Résumé : This paper details the theoretical and experimental research undertaken to determine the size and morphology of bubbles, and their dynamic characteristics such as velocity, number density, and volume flux using light scattering interferometry.^The approach is based on the measurement of the phase difference of the interference fringe pattern which is produced when a particle passing through the probe volume defined by the intersection of two laser beams scatters light and interferes n the surrounding medium.^Detailed analytical/numerical modeling of the phase Doppler approach using Mie scattering theory and the geometrical optics approximation resulted in optimum light scattering collection angles and calibration curves for bubble diagnostics.^Using several techniques to generate a steady steam of monosize bubbles in the range from 6 {mu}m to 1800 {mu}m in diameter, the measurements obtained using the phase Doppler method were compared with direct photography yielding an agreement of better than 95 percent.^The morphology of spheroidal bubbles was also investigated by placing the transmitting and receiving optical units at specified locations with respect to the scatterers. Réservation
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Code-barres Cote Support Localisation Section Disponibilité ART-1991460 BRE Document imprimé IRPHE Bibliothèque de l'IRPHE Disponible Journal of fluids engineering, Vol.113, No.4. An eddy viscosity calculation method for a turbulent duct flow / R. A. Antonia
in Journal of fluids engineering, ASME transactions
Titre de série : Journal of fluids engineering, Vol.113, No.4 Titre : An eddy viscosity calculation method for a turbulent duct flow Type de document : articles et extraits Auteurs : R. A. Antonia, Auteur ; J. Kim, Auteur ; D. K. Bisset, Auteur Année de publication : 1991 Importance : p. 616-619 Langues : Anglais (eng) Mots-clés : Turbulent boundary layer Turbulent viscosity Pipe flow Velocity distribution Reynolds stress Semiempirical method Comparative study Résumé : The mean velocity profile across a fully developed turbulent duct flow is obtained from an eddy viscosity relation combined with an empirical outer region wake function. Results are in good agreement with experiments and with direct numerical simulations in the same flow at two Reynolds numbers. In particular, the near-wall trend of the Reynolds shear stress and its variation with Reynolds number are similar to those of the simulations. The eddy viscosity method is more accurate than previous mixing length or implicit function methods.
in Journal of fluids engineering, ASME transactions
Journal of fluids engineering, Vol.113, No.4. An eddy viscosity calculation method for a turbulent duct flow [articles et extraits] / R. A. Antonia, Auteur ; J. Kim, Auteur ; D. K. Bisset, Auteur . - 1991 . - p. 616-619.
Langues : Anglais (eng)
Mots-clés : Turbulent boundary layer Turbulent viscosity Pipe flow Velocity distribution Reynolds stress Semiempirical method Comparative study Résumé : The mean velocity profile across a fully developed turbulent duct flow is obtained from an eddy viscosity relation combined with an empirical outer region wake function. Results are in good agreement with experiments and with direct numerical simulations in the same flow at two Reynolds numbers. In particular, the near-wall trend of the Reynolds shear stress and its variation with Reynolds number are similar to those of the simulations. The eddy viscosity method is more accurate than previous mixing length or implicit function methods. Réservation
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Code-barres Cote Support Localisation Section Disponibilité ART-1991616 ANT Document imprimé Bureau chercheur Bureau de Geoff Searby Disponible