Flow patterns and wavelength measurement for liquid film falling around horizontal tube

Author

Hadia, Fridhi ; Ahmed, Khandakar ; Wadhah, Soua ; Lounes, Tadrist

Author_Institution

Mater., Energy & Renewable Energies Res., Fac. of Sci. of Gafsa, Tunisia

fYear

2014

fDate

22-24 Jan. 2014

Firstpage

1

Lastpage

6

Abstract

The present study is an experimental investigation for the hydrodynamic of a liquid film falling outside a horizontal tube. By varying the flow rate, many flow regimes are identified. The transitions between different falling-film modes are studied and compared with results of other research. The wavelengths have been measured for each film Reynolds number value for droplets and column modes and the hysteresis phenomenon is observed. The measured dimensionless wavelengths are compared to the results of Hu and Jacobi (1998) and Louahlias Gualous (2003).

Keywords

drops; flow measurement; hydrodynamics; jets; laminar flow; liquid films; pattern formation; pipe flow; Hu-Jacobi model; Louahlias-Gualous model; Reynolds number; column modes; droplets; flow pattern; flow rate; flow regime; horizontal tube; hydrodynamics; hysteresis phenomenon; jets; liquid film falling; wavelength measurement; Electron tubes; Feeds; Films; Fluid flow; Wavelength measurement; Flow patterns; Horizontal tube; Liquid film; Transition; Wavelength;

fLanguage

English

Publisher

ieee

Conference_Titel

Composite Materials & Renewable Energy Applications (ICCMREA), 2014 International Conference on

Conference_Location

Sousse

Print_ISBN

978-1-4799-2515-5

Type

conf

DOI

10.1109/ICCMREA.2014.6843802

Filename

6843802