Prediction of the liquid film distribution in stratified-dispersed gas–liquid flow

2016 ◽  
Vol 142 ◽  
pp. 165-179 ◽  
Author(s):  
M. Bonizzi ◽  
P. Andreussi
Keyword(s):  
Liquid Film ◽  
Liquid Flow ◽  
Film Distribution ◽  
Gas Liquid Flow

Various aspects of application of high-speed LIF-technique to studying the wavy structure of liquid film in annular gas-liquid flow

2012 ◽  
Author(s):  
Sergey Alekseenko ◽  
Andrey Cherdantsev ◽  
Sergey Kharlamov ◽  
Dmitry Markovich ◽  
Andrey Rabusov ◽  
...  
Keyword(s):  
Liquid Film ◽  
Liquid Flow ◽  
High Speed ◽  
Wavy Structure ◽  
Gas Liquid Flow ◽  
Structure Of Liquid

Liquid film characterization in horizontal, annular, two-phase, gas–liquid flow using time-resolved laser-induced fluorescence

2011 ◽  
Vol 52 (3) ◽  
pp. 633-645 ◽  
Author(s):  
P. S. C. Farias ◽  
F. J. W. A. Martins ◽  
L. E. B. Sampaio ◽  
R. Serfaty ◽  
L. F. A. Azevedo
Keyword(s):  
Liquid Film ◽  
Liquid Flow ◽  
Laser Induced Fluorescence ◽  
Two Phase ◽  
Time Resolved ◽  
Gas Liquid Flow

Microwave method for measurement of liquid film thickness in gas– liquid flow

1986 ◽  
Vol 57 (5) ◽  
pp. 952-956 ◽  
Author(s):  
R. P. Roy ◽  
J. Ku ◽  
I. Kaufman ◽  
J. Shukla
Keyword(s):  
Film Thickness ◽  
Liquid Film ◽  
Liquid Flow ◽  
Liquid Film Thickness ◽  
Microwave Method ◽  
Gas Liquid Flow

scholarly journals Application of the laser-induced fluorescence to study local characteristics of a gas-liquid flow in rectangular microchannel

2021 ◽  
Vol 2127 (1) ◽  
pp. 012008
Author(s):  
G V Bartkus ◽  
V V Kuznetsov
Keyword(s):  
Liquid Film ◽  
Liquid Flow ◽  
Phase Distribution ◽  
Laser Induced Fluorescence ◽  
Rectangular Microchannel ◽  
Rectangular Slit ◽  
Taylor’S Law ◽  
Elongated Bubble ◽  
Gas Liquid Flow ◽  
Working Liquid

Abstract The Laser-Induced Fluorescence (LIF) method was used to characterize liquid phase distribution in rectangular slit microchannel with cross-section 200×1205 μm for horizontal gas-liquid flow. Ethanol and nitrogen were used as working liquid and gas accordingly. The feature of this study is an application of hydraulic focusing cross-junction mixer for obtaining elongated bubble and transition flows in the microchannel with a high aspect ratio. Using LIF measurements for elongated bubble and transition flows the liquid film distributions were obtained for different distances from the bubble top and average liquid film thickness was compared with the prediction according to Taylor’s law.

Analysis of spatial and temporal spectra of liquid film surface in annular gas–liquid flow

2013 ◽  
Vol 54 (9) ◽  
Author(s):  
Sergey Alekseenko ◽  
Andrey Cherdantsev ◽  
Oksana Heinz ◽  
Sergey Kharlamov ◽  
Dmitriy Markovich
Keyword(s):  
Liquid Film ◽  
Liquid Flow ◽  
Film Surface ◽  
Gas Liquid Flow

GAS–LIQUID FLOW SIMULATION IN REFRIGERANT DISTRIBUTOR FOR AIR CONDITIONER

2013 ◽  
Vol 21 (03) ◽  
pp. 1350017 ◽  
Author(s):  
EIJI ISHII ◽  
KAZUKI YOSHIMURA
Keyword(s):  
Liquid Film ◽  
Liquid Flow ◽  
Hybrid Method ◽  
Distribution Ratio ◽  
Small Diameter ◽  
Flow Simulation ◽  
Grid Method ◽  
Air Conditioner ◽  
Bend Pipe ◽  
Gas Liquid Flow

Heat exchangers with small-diameter multi-path tubes have been recently used to improve the efficiency of air conditioners. The difficulty in using tubes with small diameters and multi-paths is the nonuniformity of refrigerant distribution in refrigerant distributors, which results in lower heat-exchange efficiency. Grid methods, such as the volume of fluid method, are now widely used to simulate detailed motions of gas–liquid interfaces. A weak point of grid methods is the numerical diffusion of interfaces that occurs if the scale of interfaces becomes close to the computational grid sizes. We previously developed a particle/grid hybrid method for simulating multi-scale free surfaces. For this study, we modified the hybrid method and applied it to gas–liquid flow simulations in a distributor. The liquid film behaviors in both the distributor and a bend pipe placed in the upstream of the distributor were simulated mainly using the particle method, and gas flows were simulated using the grid method. The predicted liquid film near the outer circumference of the curvature in the bend pipe was thicker than that of near inner circumference of the curvature, which qualitatively agreed with the measurement. The simulated distribution ratio under a steady-flow condition agreed well with the measurement; the predicted distribution ratio was 0.63 and the measured distribution ratio was 0.6.

Sign in / Sign up

Export Citation Format

Share Document