Stratified liquid/gas flow was experimentally investigated in a horizontal or slightly inclined circular pipe. The polarographic method was used to determine the liquid-wall shear stress. Both the liquid fraction and pressure gradient were also measured. Sixteen wall electrodes were positioned around the tube perimeter. Local liquid-wall shear stress profiles are presented for horizontal and near-horizontal flows. The averaged values are compared with the results obtained from a stratified flow model and models using the experimental data of liquid fraction and pressure drop.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
- d :
electrode diameter (m)
- D :
pipe diameter, hydraulic diameter (m)
- D :
diffusivity (m2 s−1)
- f :
- g :
acceleration due to gravity (m s−2)
- h :
height of liquid film (m)
- k :
mass transfer coefficient (m s−1)
- L :
characteristic length (m)
- dp/dz :
pressure gradient (Pa m−1)
- P :
- Re :
Reynolds number = ρDV/μ
- S :
cross-sectional area of flow (m2)
- Sh :
Sherwood number = κL/D
- U :
superficial gas or liquid velocity (m s−1)
- V :
phase mean velocity (m s−1)
- z :
coordinate in the downstream direction, defined in Fig. 1 (m)
- Z :
dimensionless wall shear stress = τL2/(μD)
- αL :
liquid fraction, holdup
angle of pipe inclination to horizontal
angle (Fig. 2)
- θ0 :
angle defined by the interface position (Fig. 1)
dynamic viscosity (kgm−1 s-1)
density (kg m−3)
shear stress (Pa)
liquid m mixture max maximum
T. J. Hanratty and L. P. Reiss, AIChE. J. 8 (1962) 245–253.
T. J. Hanratty, J. Appl. Electrochem. 21 (1991) 1038–1046.
L. P. Reiss and T. J. Hanratty, AIChE J. 9 (1963) 154–160.
C. Deslouis, O. Gil and B. Tribollet, J. Fluid Mech. 215 (1990) 85–100.
B. Py, Experiments in Fluids 8 (1990) 281–285.
A. A. van Steenhoven and F. J. H. M. van de Beucken, J. Fluid Mech. 231 (1991) 599–614.
N. Brauner, Int. J. Heat Mass Transfer 40 (1991) 2641–2652.
C. Koeck, Thèse Docteur-Ingénieur, Université Paris VI-Orsay (1980).
G. Cognet, M. Lebouché and M. Souhar, AIChE J. 30 (1984) 338–341.
M. Souhar and G. Cognet, in ‘Measuring Techniques in Gas-Liquid Two-Phase Flows’, UTAM Symposium Nancy 1983, Springer-Verlag, Berlin (1984) pp. 723–744.
O. N. Kashinsky, J. Appl. Electrochem. 21 (1991) 1095–1098.
A. H. Govan, G. F. Hewitt, D. G. Owen and G. Burnett, Int. J. Multiphase Flow 15 (1989) 307–325.
J. E. Kowalski, AIChE J. 33 (1987) 274–281.
Y. Hagiwara, E. Esmaeilzadeh, H. Tsutsui and K. Suzuki, Int. J. Multiphase Flow 15 (1989) 421–431.
Y. Taitel and A. E. Dukler, AIChE J. 22 (1976) 47–55.
S. S. Agrawal, G. A. Gregory and G. W. Govier, Can. J. Chem. Eng. 51 (1973) 280–286.
J. M. Rosant, C.R. Acad. Sci. Paris 302, Série II (1986) 197–200.
T. W. F. Russell, A. W. Etchells, R. H. Jensen and P. J. Arruda, AIChE J. 20 (1974) 664–669.
N. Andritsos and T. J. Hanratty, AIChE J. 33 (1987) 444–454.
N. P. Cheremisinoff and E. J. Davis, AIChE J. 25 (1979) 48–56.
M. Akai, A. Inoue and S. Aoki, Int. J. Multiphase Flow 7 (1981) 21–39.
O. Shoham and Y. Taitel, AIChE J. 30 (1984) 377–385.
J. M. Rosant, Thèse Doctorat d'Etat, ENSM-Univ. Nantes (1983).
A. Laouina, Thèse Doctorat 3ème cycle, ENSM-Univ. Nantes (1984).
J. M. Fitremann and J. M. Rosant, Revue Phys. Appl. 16 (1981) 93–103.
This paper was presented at the International Workshop on Electrodiffusion Diagnostics of Flows held in Dourdan, France, May 1993.
About this article
Cite this article
Rosant, J.M. Liquid-wall shear stress in stratified liquid/gas flow. J Appl Electrochem 24, 612–618 (1994). https://doi.org/10.1007/BF00252085
- Experimental Data
- Physical Chemistry
- Shear Stress
- Pressure Gradient
- Pressure Drop