scholarly journals NUMERICAL INVESTIGATION OF LIQUID FILM INSTABILITIES AND EVAPORATION IN CONFINED OSCILLATING SLUG-PLUG FLOWS

2019 ◽  
Author(s):  
MANOLIA ANDREDAKI ◽  
ANASTASIOS GEORGOULAS ◽  
NICOLAS MICHE ◽  
MARCO MARENGO
Keyword(s):  
Liquid Film ◽  
Numerical Investigation

NUMERICAL INVESTIGATION OF FILM DISTRIBUTION IN HORIZONTAL-TUBE FALLING FILM EVAPORATOR

2011 ◽  
Vol 19 (03) ◽  
pp. 177-183 ◽  
Author(s):  
JIN-BO CHEN ◽  
QING-GANG QIU
Keyword(s):  
Numerical Simulation ◽  
Fluid Flow ◽  
Film Thickness ◽  
Liquid Film ◽  
Numerical Investigation ◽  
Horizontal Tube ◽  
Flow Density ◽  
Falling Film ◽  
Film Distribution ◽  
Simulation Results

The technique of horizontal-tube falling film has been used in the cooling and heating industries such as refrigeration systems, heating systems and ocean thermal energy conversion systems. The comprehensive performance of evaporator is directly affected by the film distribution characteristics outside tubes. In this paper, numerical investigation was performed to predict the film characteristics outside the tubes in horizontal-tube falling film evaporator. The effects of liquid flow rate, tube diameter and the circular degree of tube on the film thickness were presented. The numerical simulation results were compared with that of the empirical equations for calculating the falling film thickness, and agreements between them were reasonable. Numerical simulation results show that, at the fixed fluid flow density, the liquid film is thicker on the upper and lower tube and the thinnest liquid film appears at angle of about 120°. The results also indicate that, when the fluid flow density decreases to a certain value, the local dryout spot on the surface of the tube would occur. In addition, the film thickness decreases with the increases of the tube diameter at the fixed fluid flow density.

scholarly journals Numerical Investigation on Kinetics of Gas-Liquid Interface and Drainage Suppression of Liquid Film as Approach of a Single Bubble to a Flat Wall

2018 ◽  
Vol 32 (1) ◽  
pp. 80-88
Author(s):  
Motoki KOYAMA ◽  
Kazuyasu SUGIYAMA ◽  
Tomoaki WATAMURA ◽  
Fumiya IWATSUBO ◽  
Shu TAKAGI
Keyword(s):  
Liquid Film ◽  
Numerical Investigation ◽  
Liquid Interface ◽  
Single Bubble ◽  
Flat Wall ◽  
Kinetics Of

Numerical investigation of kinetic energy and surface energy of wavy falling liquid film

2007 ◽  
Vol 16 (3) ◽  
pp. 237-242 ◽  
Author(s):  
Mohammad Ariful Islam ◽  
Akio Miyara ◽  
Takehiro Nosoko ◽  
Toshiaki Setoguchi
Keyword(s):  
Kinetic Energy ◽  
Surface Energy ◽  
Liquid Film ◽  
Numerical Investigation ◽  
Falling Liquid Film

Numerical investigation of conduction pumping of dielectric liquid film using flush-mounted electrodes

2013 ◽  
Vol 28 (1) ◽  
pp. 89-106 ◽  
Author(s):  
Reza Gharraei ◽  
Esmaeil Esmaeilzadeh ◽  
Mohammad Reza Heirani Nobari
Keyword(s):  
Liquid Film ◽  
Numerical Investigation ◽  
Dielectric Liquid
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