Cristin-resultat-ID: 1274288
Sist endret: 24. september 2015, 21:54
Resultat
Vitenskapelig foredrag
2008

A computational study of the coalescence process between a drop and an interface in an electric field

Bidragsytere:
  • Svend Tollak Munkejord

Presentasjon

Navn på arrangementet: CFD2008 - 6th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries
Sted: Trondheim
Dato fra: 10. juni 2008
Dato til: 12. juni 2008

Arrangør:

Arrangørnavn: SINTEF, NTNU, CSIRO

Om resultatet

Vitenskapelig foredrag
Publiseringsår: 2008

Importkilder

SINTEF AS-ID: S7099

Beskrivelse Beskrivelse

Tittel

A computational study of the coalescence process between a drop and an interface in an electric field

Sammendrag

The coalescence process between a drop and an interface may not be instantaneous, but result in the creation of a smaller secondary drop. This process may be repeated several times before the coalescence is complete. Experiments have shown that an electric field can suppress thisphenomenon and give coalescence in a single stage. In this paper, the influence of an electric field on the partial coalescence process is studied using numerical simulations. The results show that higher electric Bond numbers reduce the time from pinch-off of a secondary drop to recoalescence, and eventually give single-staged coalescence. A single-stage coalescence event is presented in detail, and the mechanism producing it discussed. The results support arguments from the literature that single-staged coalescence is caused by an increased downward momentum due to electrostatic attraction.

Bidragsytere

Svend Tollak Munkejord

  • Tilknyttet:
    Forfatter
    ved Gassteknologi ved SINTEF Energi AS
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