scholarly journals EXPERIMENTAL INVESTIGATION OF PRESSURE AND VOID FRACTION CHANGES FOR TWO-PHASE FLOW THROUGH FLOW-RESTRICTING ORIFICES

2019 ◽  
Author(s):  
NAIEF ALMALKI ◽  
WAEL H. AHMED
Keyword(s):  
Experimental Investigation ◽  
Void Fraction ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Through Flow ◽  
Flow Through

scholarly journals Pressure drop and average void fraction measurements for two-phase flow through highly permeable porous media

2016 ◽  
Vol 94 ◽  
pp. 422-432 ◽  
Author(s):  
N. Chikhi ◽  
R. Clavier ◽  
J.-P. Laurent ◽  
F. Fichot ◽  
M. Quintard
Keyword(s):  
Porous Media ◽  
Pressure Drop ◽  
Void Fraction ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Through

scholarly journals Experimental investigation of air–water two-phase flow through vertical 90° bend

2014 ◽  
Vol 57 ◽  
pp. 226-234 ◽  
Author(s):  
Faiza Saidj ◽  
Rachid Kibboua ◽  
Abdelwahid Azzi ◽  
Noureddine Ababou ◽  
Barry James Azzopardi
Keyword(s):  
Experimental Investigation ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Through

Visualization of Two-Phase Flow Through Microchannel Heat Exchangers

2015 ◽  
Author(s):  
Dhruv C. Hoysall ◽  
Khoudor Keniar ◽  
Srinivas Garimella
Keyword(s):  
Void Fraction ◽  
Two Phase Flow ◽  
Flow Distribution ◽  
Interfacial Area ◽  
High Speed Photography ◽  
Phase Flow ◽  
Water Mixture ◽  
Two Phase ◽  
Microchannel Array ◽  
Flow Through

Multiphase flow phenomena in single micro- and minichannels have been widely studied. Characteristics of two-phase flow through a large array of microchannels are investigated here. An air-water mixture is used to represent the two phases flowing through a microchannel array representative of those employed in practical applications. Flow distribution of the air and water flow across 52 parallel microchannels of 0.3 mm hydraulic diameter is visually investigated using high speed photography. Two microchannel configurations are studied and compared, with mixing features incorporated into the second configuration. Slug and annular flow regimes are observed in the channels. Void fractions and interfacial areas are calculated for each channel from these observations. The flow distribution is tracked at various lengths along the microchannel array sheets. Statistical distributions of void fraction and interfacial area along the microchannel array are measured. The design with mixing features yields improved flow distribution. Void fraction and interfacial area change along the length of the second configuration, indicating a change in fluid distribution among the channels. The void fraction and interfacial area results are used to predict the performance of different microchannel array configurations for heat and mass transfer applications. Results from this study can help inform the design of compact thermal-fluid energy systems.

Experimental Investigation of Degree of Premixing on Isothermal Air-Water Two-Phase Flow Through Minichannel

2014 ◽  
Author(s):  
Hemant B. Mehta ◽  
Jyotirmay Banerjee
Keyword(s):  
Experimental Investigation ◽  
Flow Pattern ◽  
Two Phase Flow ◽  
Major Effect ◽  
Phase Flow ◽  
Inlet Channel ◽  
Two Phase ◽  
Channel Geometry ◽  
Flow Through ◽  
Isothermal Gas

The study on the effect of degree of premixing on isothermal gas-liquid two-phase flow pattern and flow pattern maps in microscale channels is inadequate. The present paper discusses the experimental investigation on air-water two-phase flow through 2.15 mm horizontal circular minichannel. Two type of inlet channel geometry, T-junction (TJ) and Y-junction (YJ), are considered. Six different flow patterns are observed and flow pattern maps are developed. The developed flow pattern maps for TJ and YJ channels are compared with the maps available in the literature. The surface tension dominated region is found to have major effect of inlet channel geometry. The results obtained for minichannel can be guidelines to analyze and design diverse two-phase microfluidic applications.

scholarly journals Pore‐Scale Experimental Investigation of Two‐Phase Flow Through Fractured Porous Media

2018 ◽  
Vol 54 (5) ◽  
pp. 3602-3631 ◽  
Author(s):  
M. Arshadi ◽  
M. Khishvand ◽  
A. Aghaei ◽  
M. Piri ◽  
G. A. Al‐Muntasheri
Keyword(s):  
Experimental Investigation ◽  
Porous Media ◽  
Two Phase Flow ◽  
Fractured Porous Media ◽  
Phase Flow ◽  
Pore Scale ◽  
Two Phase ◽  
Flow Through

Experimental Investigation of Degree of Premixing on Isothermal Air-Water Two-Phase Flow Through Minichannel

2013 ◽  
Author(s):  
Hemant B. Mehta ◽  
Jyotirmay Banerjee ◽  
Jukesh A. Dodiya ◽  
Sanket Solanki
Keyword(s):  
Experimental Investigation ◽  
Flow Pattern ◽  
Two Phase Flow ◽  
Major Effect ◽  
Phase Flow ◽  
Inlet Channel ◽  
Two Phase ◽  
Channel Geometry ◽  
Flow Through ◽  
Isothermal Gas

The study on the effect of degree of premixing on isothermal gas-liquid two-phase flow pattern and flow pattern maps in microscale channels is inadequate. The present paper discusses the experimental investigation on air-water two-phase flow through 2.25 mm horizontal circular minichannel. Two type of inlet channel geometry, T-junction (TJ) and Y-junction (YJ), are considered. Six different flow patterns are observed and flow pattern maps are developed. The developed flow pattern maps for TJ and YJ channels are compared with the maps available in the literature. The surface tension dominated region is found to have major effect of inlet channel geometry. The results obtained for minichannel can be guidelines to analyze and design diverse two-phase microfluidic applications.

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