Two-dimensional flow simulations of shear driven liquid film by turbulent air flow in a duct is performed using the Reynolds Averaged Navier Stokes and continuity equations along with the k-ε turbulence model and the Volume of Fluid (VOF) model that are part of the FLUENT-CFD code. The purpose of this effort is to determine the suitability of using this model for predicting the measured results of Wittig et al. [1, 2]. In these studies, optical means are used to measure shear driven liquid film velocities along with the liquid film thickness, and measurements are reported for different air velocities and liquid film flow rates. The simulated results will be compared with measured values, and the suitability of the VOF model for simulating such flow will be assessed in this study.

Volume Subject Area:
Fluids Engineering
Topics:
Ducts, Liquid films, Shear (Mechanics), Flow (Dynamics), Turbulence, Air flow, Computational fluid dynamics, Flow simulation, Fluids
1.
Wittig
S.
,
Himmelsbach
J.
,
Noll
B.
,
Feld
H. J.
,
Samenfink
W.
,
1992
, “
Motion and evaporation of sheardriven liquid films in turbulent gases
”,
J. Engineering for Gas Turbines and Power
,
114
, pp.
395
–
400
.
2.
Wittig
S.
,
Elsaber
A.
,
Samenfink
W.
,
Ebner
J.
,
Dullenkopf
K.
,
1996
, “
Velocity profiles in shear-driven liquid films: LDV-Measurements
”,
Proceedings of the Eighth International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, Portugal
, Volume
II
, pp.
509
–
522
.
3.
Sattelmayer
T.
,
Wittig
S.
,
1986
, “
Internal flow effects in prefilming airblast atomizers: Mechanisms of atomization and droplet spectra
”,
J. Engineering for Gas Turbines and Power
,
108
, pp.
465
–
472
.
4.
Buelow, P.E.O., Mao, C.P., Smith, S., Bretz, D., 2001, “Application of two-phase CFD analysis to a prefilming pure-airblast atomizer”, 37th AIAA/ASME/SAE/ASEE Joint Propulsion Conference, Salt Lake City, Utah, pp. 1–10.
5.
Abe
K.
,
Kondoh
T.
,
Nagano
Y.
,
1994
, “
A new turbulence model for predicting fluid flow and heat transfer in separating and reattaching flows - I. Flow field calculations
”,
Int. J. Heat Mass Transfer
,
37
(
1)
, pp.
139
–
151
.
6.
Brackbill
J. U.
,
Kothe
D. B.
,
Zemach
C.
,
1992
, “
A continuum method for modeling surface tension
”,
J. Computational Physics
,
100
, pp.
335
–
354
.
7.
Fluent 6.2 User’s Guide, Fluent Inc. 2004.
This content is only available via PDF.
Copyright © 2006
 by ASME
You do not currently have access to this content.