Wall Friction and Effective Viscosity of a Homogeneous Dispersed Liquid-Liquid Flow in a Horizontal Pipe
| Autor: | Olivier Masbernat, Alain Liné, Amélie Pouplin, Sandrine Decarre |
|---|---|
| Přispěvatelé: | Laboratoire de génie chimique [ancien site de Basso-Cambo] (LGC), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, IFP Energies nouvelles (IFPEN), Laboratoire d'Ingénierie des Systèmes Biologiques et des Procédés (LISBP), Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de la Recherche Agronomique (INRA), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Institut National de la Recherche Agronomique - INRA (FRANCE), Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE), IFP Energies Nouvelles - IFPEN (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Laboratoire de Génie Chimique (LGC), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT), Institut National de la Recherche Agronomique (INRA)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique de Toulouse - INPT (FRANCE) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Environmental Engineering
General Chemical Engineering Flow (psychology) Thermodynamics 02 engineering and technology 01 natural sciences Friction loss 010305 fluids & plasmas [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph] Physics::Fluid Dynamics Viscosity 0103 physical sciences Génie chimique Génie des procédés liquid-liquid pipe flow Plug flow Chemistry Turbulence Dynamique des Fluides Homogeneous dispersed flow homogeneous dispersed flow wall friction Laminar flow Milieux fluides et réactifs Wall friction Mechanics 021001 nanoscience & nanotechnology effective viscosity PIV Particle image velocimetry Liquid–liquid pipe flow Effective viscosity 0210 nano-technology Dispersion (chemistry) Biotechnology |
| Zdroj: | AIChE Journal AIChE Journal, Wiley, 2011, 57 (5), pp.1119-1131. ⟨10.1002/aic.12334⟩ AIChE Journal, 2011, 57 (5), pp.1119-1131. ⟨10.1002/aic.12334⟩ |
| ISSN: | 0001-1541 1547-5905 |
| DOI: | 10.1002/aic.12334⟩ |
| Popis: | International audience; Homogenous oil in water dispersion has been investigated in a horizontal pipe. The mean droplet size is 25 μm. Experiments were carried out in a 7.5-m-long transparent pipe of 50-mm internal diameter. The wall friction has been measured and modeled for a wide range of flow parameters, mixture velocities ranging from 0.28 to 1.2 m/s, and dispersed phase volume fractions up to 0.6, including turbulent, intermediate, and laminar regimes. Flow regimes have been identified from velocity profiles measured by particle image velocimetry in a matched refractive index medium. It is shown that the concept of effective viscosity is relevant to scale the friction at the wall of the dispersed flow. Based on mixture properties, the friction factor follows the Hagen-Poiseuille and the Blasius' law in laminar and turbulent regimes, respectively. Interestingly, the transition toward turbulence is delayed as the dispersed phase fraction is increased. |
| Databáze: | OpenAIRE |
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