Formation of Gas Pockets in a Boundary Layer Under Turbulent Forcing (Abstract/Poster in atti di convegno)

Type

• Prodotto della ricerca (Classe)
• Abstract/Poster in atti di convegno (Classe)

Label

• Formation of Gas Pockets in a Boundary Layer Under Turbulent Forcing (Abstract/Poster in atti di convegno) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Alternative label

• FRANCISCO PEREIRA, DAVID JEON, MORTEZA GHARIB (2013)
  Formation of Gas Pockets in a Boundary Layer Under Turbulent Forcing
  in 66th Annual Meeting of the Division of Fluid Dynamics, Pittsburgh, PA, November 24-26, 2013
  (literal)

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

• FRANCISCO PEREIRA, DAVID JEON, MORTEZA GHARIB (literal)

Pagina inizio

• 278 (literal)

Pagina fine

• 278 (literal)

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

• http://meetings.aps.org/link/BAPS.2013.DFD.H11.8 (literal)

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

• 66th Annual Meeting of the Division of Fluid Dynamics (literal)

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

• 58 (literal)

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

• Series II (literal)

Rivista

• Bulletin of the American Physical Society (Rivista)

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

• 520 (literal)

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

• 18 (literal)

Note

• Abstract (literal)

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

• CNR-INSEAN California Institute of Technology California Institute of Technology (literal)

Titolo

• Formation of Gas Pockets in a Boundary Layer Under Turbulent Forcing (literal)

Abstract

• Our experiments examine the formation of gas pockets in a flat plate boundary layer in water submitted to turbulent forcing. Air micro-bubbles are in- jected from wall orifices over surfaces with hydrophilic, hydrophobic and super-hydrophobic wetting properties. In this latter case, the surfaces are coated with paints with water repellent characteristics, or covered with vertically aligned carbon nanotubes (CNTs) that are chemically tuned to produce super-hydrophobicity. The turbulence level of the in- coming flow is adjusted through meshes and grids. Bubble injection is operated at constant flow rate, and the mechanism of bubble growth and detachment is investigated through high speed recordings. Super- hydrophobicity is found to promote the attachment of discrete gas voids to the wall, with CNTs favoring the formation of a gas layer. Another finding is that the turbulence intensity affects the stability of microbub- bles attached to the wall under super-hydrophobic conditions. (literal)

Editore

• The American Physical Society (Editore)

Prodotto di

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

Autore CNR

• FRANCISCO ALVES PEREIRA (Unità di personale interno)

Insieme di parole chiave

• Keywords of "Formation of Gas Pockets in a Boundary Layer Under Turbulent Forcing" (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

• Bulletin of the American Physical Society (Rivista)

Editore di

• The American Physical Society (Editore)

Insieme di parole chiave di

• Keywords of "Formation of Gas Pockets in a Boundary Layer Under Turbulent Forcing" (Insieme di parole chiave)