Effect of vapor bubbles on velocity fluctuations and dissipation rates in bubbly Rayleigh-Bénard convection. (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Effect of vapor bubbles on velocity fluctuations and dissipation rates in bubbly Rayleigh-Bénard convection. (Articolo in rivista) (literal)

Anno

• 2011-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1063/1.3623466 (literal)

Alternative label

• Lakkaraju, R., Schmidt, L.E., Oresta, P., Toschi, F., Verzicco, R., Lohse, D. & Prosperetti, A. (2011)
  Effect of vapor bubbles on velocity fluctuations and dissipation rates in bubbly Rayleigh-Bénard convection.
  in Physical review. E, Statistical, nonlinear and soft matter physics (Online)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Lakkaraju, R., Schmidt, L.E., Oresta, P., Toschi, F., Verzicco, R., Lohse, D. & Prosperetti, A. (literal)

Pagina inizio

• 036312 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 84 (literal)

Rivista

• Physical review. E, Statistical, nonlinear and soft matter physics (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1 Physics of Fluids Group, Faculty of Science and Technology, Impact and Mesa+ Institutes, and J. M. Burgers Center for Fluid Dynamics, University of Twente, NL-7500 AE Enschede, The Netherlands 2 Dipartimento di Ingegneria dell' Ambiente e per lo Sviluppo Sostenibile, Politecnico di Bari, Via De Gasperi, I-74123 Taranto, Italy 3 Dipartimento di Ingegneria dell'Innovazione, Universitá del Salento, Via per Arnesano, I-73100 Lecce, Italy 4 Department of Physics, Department of Mathematics and Computer Science, and J. M. Burgers Center for Fluid Dynamics, Eindhoven University of Technology, NL-5600 MB Eindhoven, The Netherlands 5 Department of Mechanical Engineering, University of Rome \"Tor Vergata\", Via del Politecnico 1, I-00133 Rome, Italy 6 Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, USA (literal)

Titolo

• Effect of vapor bubbles on velocity fluctuations and dissipation rates in bubbly Rayleigh-Bénard convection. (literal)

Abstract

• Numerical results for kinetic and thermal energy dissipation rates in bubbly Rayleigh-Bénard convection are reported. Bubbles have a twofold effect on the flow: on the one hand, they absorb or release heat to the surrounding liquid phase, thus tending to decrease the temperature differences responsible for the convective motion; but on the other hand, the absorbed heat causes the bubbles to grow, thus increasing their buoyancy and enhancing turbulence (or, more properly, pseudoturbulence) by generating velocity fluctuations. This enhancement depends on the ratio of the sensible heat to the latent heat of the phase change, given by the Jakob number, which determines the dynamics of the bubble growth. (literal)

Prodotto di

• Istituto per le applicazioni del calcolo \"Mauro Picone\" (IAC) (Istituto)
• Dinamica dei sistemi complessi fluidodinamici e biologici (MD.P02.002.001) (Modulo)

Autore CNR

• FEDERICO TOSCHI (Unità di personale interno)

Incoming links:

Prodotto

• Istituto per le applicazioni del calcolo \"Mauro Picone\" (IAC) (Istituto)
• Dinamica dei sistemi complessi fluidodinamici e biologici (MD.P02.002.001) (Modulo)

Autore CNR di

• FEDERICO TOSCHI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Physical review. E, Statistical, nonlinear and soft matter physics (Rivista)