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An experimental study of the effects of surfactant on a falling liquid film.

Author(s) : NORDGREN M., SETTERWALL F.

Type of article: Article, IJR article

Summary

The authors describe, both by observations and by calculations, what happens with the wave pattern after an addition of surfactant. The experiments were carried out in a 6-m high falling film column with a mixture of water and glycerol. The changes in wave pattern were detected by a video camera. Surfactant concentrations under the saturation limit destabilize the film and concentrations over the limit stabilize the film. The surface excess concentration, the concentration of surfactant in the surface per square meter, plays a key role in the influence of surfactant on the behaviour of falling liquid films.

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Pages: 310-316

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Details

  • Original title: An experimental study of the effects of surfactant on a falling liquid film.
  • Record ID : 1997-1448
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 19 - n. 5
  • Publication date: 1996/06

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