Publication detail

Thick liquid film instability model using CFD simulations

KNOTEK, S. JÍCHA, M.

English title

Thick liquid film instability model using CFD simulations

Type

Peer-reviewed article not indexed in WoS or Scopus

Language

en

Original abstract

The article presents a liquid film instability model designed using results of the set of CFD simulations. The governing equations of the model are derived using a linear equation of motion. The stability analysis is carried out by imposing a liquid surface disturbance which growth rate is investigated in dependence on the geometrical and physical configuration. The gas effect parameters, which are decisive variables in the model, are derived using results of the set of CFD simulations of turbulent flow in channel with wavy surface. The agreement between predicted and measured critical gas velocities and wavelengths in dependence on the liquid film thickness is very good.

Keywords in English

liquid film, instability, waves, CFD

Released

2013-12-01

ISSN

1802-1484

Journal

Engineering Mechanics

Volume

20

Number

3/4

Pages from–to

247–254

Pages count

8

BIBTEX


@article{BUT105617,
  author="Stanislav {Knotek} and Miroslav {Jícha}",
  title="Thick liquid film instability model using CFD simulations",
  journal="Engineering Mechanics",
  year="2013",
  volume="20",
  number="3/4",
  pages="247--254",
  issn="1802-1484",
  url="http://www.engineeringmechanics.cz/pdf/20_3_247.pdf"
}