Detail publikace

Liquid film instability model using CFD simulations

KNOTEK, S. JÍCHA, M.

Český název

Liquid film instability model using CFD simulations

Anglický název

Liquid film instability model using CFD simulations

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

cs

Originální abstrakt

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 in dependence on the liquid film thickness is very good.

Český abstrakt

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 in dependence on the liquid film thickness is very good.

Anglický abstrakt

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 in dependence on the liquid film thickness is very good.

Klíčová slova česky

liquid film, instability, CFD

Klíčová slova anglicky

liquid film, instability, CFD

Rok RIV

2012

Vydáno

26.06.2012

ISBN

978-80-214-4529-1

Kniha

Sborník příspěvků

Strany od–do

103–106

Počet stran

4

BIBTEX


@inproceedings{BUT92748,
  author="Stanislav {Knotek} and Miroslav {Jícha},
  title="Liquid film instability model using CFD simulations",
  booktitle="Sborník příspěvků",
  year="2012",
  month="June",
  pages="103--106",
  isbn="978-80-214-4529-1"
}