scholarly journals Experimental Investigation of Two-Phase Pressure Drop in a Microchannel

2011 ◽  
Vol 32 (13-14) ◽  
pp. 1126-1138 ◽  
Author(s):  
Rashid Ali ◽  
Björn Palm ◽  
Muhammad H. Maqbool
Keyword(s):  
Experimental Investigation ◽  
Pressure Drop ◽  
Two Phase ◽  
Phase Pressure

scholarly journals Experimental investigation of water-nitrogen flow in microchannel with high aspect ratio (with the 20 µm gap)

2021 ◽  
Vol 2119 (1) ◽  
pp. 012070
Author(s):  
Y A Dementyev ◽  
F V Ronshin ◽  
E A Chinnov ◽  
A A Evstrapov ◽  
S S Karpich ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Pressure Drop ◽  
Aspect Ratio ◽  
Annular Flow ◽  
Nitrogen Flow ◽  
Two Phase ◽  
Flow Pattern Map ◽  
Schlieren System ◽  
Phase Water ◽  
Phase Pressure

Abstract This study is devoted to the experimental investigation of two-phase water-nitrogen flow in the slit microchannel with a gap of 20 µm and a width of 10 mm. The technology of microchannel fabrication has been developed and described in detail. Experiments were conducted in adiabatic conditions. Using a modified schlieren system, four flow patterns have been observed and described: jet, bubble, churn, and annular. Flow pattern map was plotted according to obtained patterns. Moreover, a two-phase pressure drop was measured. Dependencies between two-phase pressure drop and superficial liquid and gas velocities have been investigated.

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