TY  - JOUR
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051207463&doi=10.1504%2fPCFD.2018.093575&partnerID=40&md5=8a2b381c16f2b61462ef1ce2b3dd6f8e
A1  - Mohmmed, A.O.
A1  - Nasif, M.S.
A1  - Al-Kayiem, H.H.
JF  - Progress in Computational Fluid Dynamics
VL  - 18
Y1  - 2018///
N2  - In the present work, the transition from stratified flow to slug flow regime for airwater and air-oil two-phase flow was simulated and analysed numerically. The simulation was carried out by numerically solving a three dimensional (3D) implicit unsteady volume of fluid (VOF) model. Typical slug characteristics, such as slug length, slug translational velocity, and slug frequency were determined. The numerical results were validated by comparison with experimental results and a reasonable agreement with an error less than 8.7 was achieved. Moreover, the results from the proposed model were compared to the results obtained from three empirical correlations for the two-phase slug flow and it demonstrated a good agreement. The simulation results demonstrated that for the same boundary conditions, the characteristics in terms of slug initiation and slug growth were strongly affected by the fluid properties. The simulation results also show that for air-oil flow, the pressure drop, slug translational velocity, and slug frequency values were less than in air-water flow by 2.9, 14.3, and 7.9, respectively. © Copyright 2018 Inderscience Enterprises Ltd.
IS  - 4
KW  - Air; Computational fluid dynamics; Computer simulation; Flow of water
KW  -  Empirical correlations; Numerical investigations; Slug characteristics; Slug flow; Threedimensional (3-d); Translational velocity; Volume of fluid model; Volume of fluids
KW  -  Two phase flow
ID  - scholars10809
EP  - 256
SN  - 14684349
PB  - Inderscience Publishers
N1  - cited By 4
SP  - 241
TI  - Numerical investigation of slug characteristics in a horizontal air/water and air/oil pipe flow
AV  - none
ER  -