COCURRENT GAS-LIQUID FLOW IN METAL FOAM: AN EXPERIMENTAL INVESTIGATION OF PRESSURE GRADIENT

In this paper, a fully developed stratified gas-liquid flow in inclined circular pipes is numerically modeled. The model is applied on a stratified gas-liquid downward flow with smooth and horizontal interface, in pipes with inclination angles varying from 0 to −10 degrees. A system of non-linear differential equations, consisting of the Reynolds averaged Navier-Stokes equations with the κ – ω turbulence model, are solved by using an inner iteration loop based on the Newton-Raphson scheme and the finite element method. Numerical solutions are obtained for the liquid height and pressure gradient which were compared with experimental and numerical data. An excellent agreement with the experimental data was obtained, leading to conclusion that the present model is adequate to simulate the stratified gas-liquid downward flow, and it can be used to estimate the flow parameters such as the liquid height and pressure gradient.

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CFD and experimental investigation of the gas–liquid flow in the distributor of a compact heat exchanger

Chemical Engineering Research and Design ◽

10.1016/j.cherd.2014.02.002 ◽

2014 ◽

Vol 92 (11) ◽

pp. 2361-2370 ◽

Cited By ~ 14

Author(s):

Selma Ben Saad ◽

Caroline Gentric ◽

Jean-François Fourmigué ◽

Patrice Clément ◽

Jean-Pierre Leclerc

Keyword(s):

Experimental Investigation ◽

Heat Exchanger ◽

Liquid Flow ◽

Compact Heat Exchanger ◽

Gas Liquid Flow

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Experimental investigation of gas-liquid flow characteristics in slit rectangular and circular channels

Journal of Physics Conference Series ◽

10.1088/1742-6596/1382/1/012072 ◽

2019 ◽

Vol 1382 ◽

pp. 012072

Author(s):

G V Bartkus ◽

V V Kuznetsov

Keyword(s):

Experimental Investigation ◽

Liquid Flow ◽

Flow Characteristics ◽

Gas Liquid Flow

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Prediction of holdup, axial pressure gradient and wall shear stress in wavy stratified and stratified/atomization gas/liquid flow

International Journal of Multiphase Flow ◽

10.1016/s0301-9322(98)00049-4 ◽

1999 ◽

Vol 25 (2) ◽

pp. 365-376 ◽

Cited By ~ 16

Author(s):

N.A. Vlachos ◽

S.V. Paras ◽

A.J. Karabelas

Keyword(s):

Shear Stress ◽

Wall Shear Stress ◽

Pressure Gradient ◽

Liquid Flow ◽

Axial Pressure ◽

Axial Pressure Gradient ◽

Wall Shear ◽

Gas Liquid Flow

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Experimental Investigation of the Two-Phase Phenomena in a Small Discharge Installed on a Large Pipe With Stratified Gas-Liquid Flow

Volume 1: Symposia, Parts A, B and C ◽

10.1115/fedsm2009-78300 ◽

2009 ◽

Author(s):

Robert Bowden ◽

Wael F. Saleh ◽

Ibrahim Hassan

Keyword(s):

Experimental Investigation ◽

Flow Visualization ◽

Flow Rate ◽

Liquid Flow ◽

Two Phase ◽

Horizontal Pipe ◽

Gas Entrainment ◽

Small Discharge ◽

Gas Liquid Flow ◽

Good Agreement

Experiments were performed in a 50.8 mm diameter horizontal pipe with co-current stratified gas-liquid flow. A single, 6.35 mm diameter, downward oriented discharge was located at 1829 mm from the horizontal pipe’s inlet. Water and air, operating at a pressure of 312 kPa and adiabatic conditions, were used. The objectives of the study were to investigate gas entrainment in the discharge branch. Qualitative flow visualization of the two-phase entrainment flow structure was conducted, and measurements of the critical liquid height, two-phase mass flow rate, and quality, are provided. The results were compared with available correlations and showed good agreement with selected models.

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