Defocusing digital particle image velocimetry and the three-dimensional characterization of two-phase flows (Articolo in rivista)

Type

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

Label

• Defocusing digital particle image velocimetry and the three-dimensional characterization of two-phase flows (Articolo in rivista) (literal)

Anno

• 2002-01-01T00:00:00+01:00 (literal)

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

• 10.1088/0957-0233/13/5/305 (literal)

Alternative label

• Pereira, Francisco and Gharib, Morteza (2002)
  Defocusing digital particle image velocimetry and the three-dimensional characterization of two-phase flows
  in Measurement science & technology (Online)
  (literal)

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

• Pereira, Francisco and Gharib, Morteza (literal)

Pagina inizio

• 683 (literal)

Pagina fine

• 694 (literal)

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

• US patents 7006132 and 7612869 (literal)

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

• http://dx.doi.org/10.1088/0957-0233/13/5/305 (literal)

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

• 13 (literal)

Rivista

• Measurement science & technology (Rivista)

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

• 12 (literal)

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

• 5 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopu (literal)

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

• Pereira, Francisco: CNR-INSEAN Gharib, Morteza: California Institute of Technology (literal)

Titolo

• Defocusing digital particle image velocimetry and the three-dimensional characterization of two-phase flows (literal)

Abstract

• Defocusing digital particle image velocimetry (DDPIV) is the natural extension of planar PIV techniques to the third spatial dimension. In this paper we give details of the defocusing optical concept by which scalar and vector information can be retrieved within large volumes. The optical model and computational procedures are presented with the specific purpose of mapping the number density, the size distribution, the associated local void fraction and the velocity of bubbles or particles in two-phase flows. Every particle or bubble is characterized in terms of size and of spatial coordinates, used to compute a true three-component velocity field by spatial three-dimensional cross-correlation. The spatial resolution and uncertainty limits are established through numerical simulations. The performance of the DDPIV technique is established in terms of number density and void fraction. Finally, the velocity evaluation methodology, using the spatial cross-correlation technique, is described and discussed in terms of velocity accuracy. (literal)

Prodotto di

• Sistemi Propulsivi (ET.P02.018.002) (Modulo)

Autore CNR

• FRANCISCO ALVES PEREIRA (Unità di personale interno)

Insieme di parole chiave

• Parole chiave di "Defocusing digital particle image velocimetry and the three-dimensional characterization of two-phase flows" (Insieme di parole chiave)

Incoming links:

Prodotto

• Sistemi Propulsivi (ET.P02.018.002) (Modulo)

Autore CNR di

• FRANCISCO ALVES PEREIRA (Unità di personale interno)

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

• Measurement science & technology (Rivista)

Insieme di parole chiave di

• Parole chiave di "Defocusing digital particle image velocimetry and the three-dimensional characterization of two-phase flows" (Insieme di parole chiave)