scholarly journals Experimental and Numerical Studies of Two-Phase Flow in Ribbed Periodic Vertical Channel

2020 ◽  
Vol 68 (1) ◽  
pp. 34-53
Author(s):  
Laith Jaafer Habeeb ◽  
Hasan Shakir Majdi
Keyword(s):  
Two Phase Flow ◽  
Vertical Channel ◽  
Phase Flow ◽  
Two Phase ◽  
Numerical Studies

Numerical studies on two-phase flow in cryogenic radial-inflow turbo-expander using varying condensation models

2019 ◽  
Vol 156 ◽  
pp. 168-177 ◽  
Author(s):  
Wan Sun ◽  
Shuangtao Chen ◽  
Yu Hou ◽  
Shanshan Bu ◽  
Zaiyong Ma ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Numerical Studies ◽  
Turbo Expander

Transition of Bubbly to Slug Flow in a Short Vertical Channel of Gas-Liquid Two-Phase Flow

2014 ◽  
Vol 881-883 ◽  
pp. 721-725
Author(s):  
Mohd Zamri Zainon ◽  
Mohd Ardan Zubir ◽  
Rahizar Ramli
Keyword(s):  
Slug Flow ◽  
Two Phase Flow ◽  
Vertical Channel ◽  
Superficial Velocity ◽  
Phase Flow ◽  
Flow Loop ◽  
Two Phase ◽  
Slip Ratio ◽  
Wide Range ◽  
Simple Flow

Transitions of bubbly to slug flow have been investigated for wide range of flow conditions via visualization technique. The effects of velocities of both phases were examined with variety of combinations and the experimentations were focused on the air-water flow with an industrial scale two-phase flow loop. The results show that the formations of slugs were easy with the increasing gas superficial velocity during a fixed liquid superficial velocity and were difficult when velocity of the liquid phase increases. These transitions were then evaluated using the ratio of velocities of both phases or called the slip ratio and from there a simple flow pattern map was constructed.

scholarly journals Numerical studies on slope stability in torrential rainfall by using two-phase flow analysis

2016 ◽  
Vol 2 (27) ◽  
pp. 990-995 ◽  
Author(s):  
Satoshi Sugimoto ◽  
Yujing Jiang ◽  
Kiyoshi Omine ◽  
Jumpei Ishida ◽  
Yukihiro Higashi
Keyword(s):  
Slope Stability ◽  
Two Phase Flow ◽  
Flow Analysis ◽  
Phase Flow ◽  
Two Phase ◽  
Numerical Studies ◽  
Torrential Rainfall

Flow visualization of gas-liquid two-phase flow in vertical channel with contraction

2005 ◽  
Vol 25 (Supplement1) ◽  
pp. 23-26
Author(s):  
Masaaki ISHIKAWA ◽  
Yuichiro MORIMOTO ◽  
Koji OKAMOTO ◽  
Haruki MADARAME
Keyword(s):  
Flow Visualization ◽  
Two Phase Flow ◽  
Vertical Channel ◽  
Phase Flow ◽  
Two Phase

Experimental and numerical studies on two-phase flow instability behavior of a parallel helically coiled system

2020 ◽  
Vol 144 ◽  
pp. 107588
Author(s):  
Minglu Wang ◽  
Mingguang Zheng ◽  
Jinquan Yan ◽  
Shaoxuan Lin ◽  
Yao Xiao
Keyword(s):  
Two Phase Flow ◽  
Flow Instability ◽  
Phase Flow ◽  
Two Phase ◽  
Numerical Studies

scholarly journals ENHANCEMENT THE HEAT TRANSFER FOR TWO-PHASE FLOW THROUGH A RECTANGULAR RIBBED VERTICAL CHANNEL

2018 ◽  
Vol 18 (1) ◽  
pp. 92-109
Author(s):  
Riyadh S Al-Turaihi ◽  
Doaa F Kareem
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Transfer Coefficient ◽  
Two Phase Flow ◽  
Vertical Channel ◽  
Numerical Data ◽  
Local Heat Transfer ◽  
Local Heat ◽  
Phase Flow ◽  
Two Phase

 The heat transfer coefficient and temperature distribution of two phase flow (water, air)in rectangular ribbed vertical channel was investigated experimentally and numerically inthis work for different values of water and air superficial velocities (0.0421, 0.0842, 0.1158,0.1474 and 0.1684 m/s) and (1.0964, 1.425, 1.644, 1.864 and 2.193 m/s), respectively, atconstant heat flux (120 W). The distribution of temperature along the channel wasphotographed using thermal camera and compared with images for the correspondingcontours which found numerically. The experimental results of heat transfer coefficientcompared with computational fluid dynamics model simulated by Ansys fluent 15.0. Agood agreement has been found between the experimental and numerical data, where thepercentage deviation between the experimental and the numerical results is (1% - 6% ). Theresults showed that, the local heat transfer coefficient increased by adding ribs, it alsoincreased as the velocity of the flow increased.

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