Predictive model for critical wave amplitude at the onset of entrainment in oil-water Flow

Talal Al-Wahaibi, Panagiota Angeli

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The characteristics of the waves at the interface during oil-water flow when drops are formed and entrainment of one phase into the other starts were studied both theoretically and experimentally. Theoretically a model was developed based on Kelvin-Helmholtz instability that included surface tension and predicted critical wave amplitude that leads to entrainment for a specific wavelength. Experimentally wave characteristics before and at the onset of entrainment were investigated by measuring the instantaneous fluctuation of the interface between oil (6mPas, 828kg/m3) and water in a 0.038m diameter stainless steel pipe using a conductivity probe. It was found that the critical wave amplitude decreases with increasing wavelength. Also as the difference in velocity between the two phases decreases the critical wave amplitude increases. The model was able to predict the wave amplitude at the onset of entrainment when an experimental wave velocity was used.

Original languageEnglish
Title of host publication12th International Conference on Multiphase Production Technology '05
EditorsA. Hunt
Pages627-641
Number of pages15
Publication statusPublished - 2005
Event12th International Conference on Multiphase Production Technology '05 - Barcelona, Spain
Duration: May 25 2005May 27 2005

Other

Other12th International Conference on Multiphase Production Technology '05
CountrySpain
CityBarcelona
Period5/25/055/27/05

ASJC Scopus subject areas

  • Engineering(all)

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    Al-Wahaibi, T., & Angeli, P. (2005). Predictive model for critical wave amplitude at the onset of entrainment in oil-water Flow. In A. Hunt (Ed.), 12th International Conference on Multiphase Production Technology '05 (pp. 627-641)