Interaction of density wave oscillations and flow maldistribution for two-phase flow boiling parallel channels

2019 ◽  
Vol 145 ◽  
pp. 106026
Author(s):  
Deepraj Paul ◽  
Suneet Singh ◽  
Surendra Mishra
Keyword(s):  
Two Phase Flow ◽  
Flow Boiling ◽  
Density Wave ◽  
Phase Flow ◽  
Two Phase ◽  
Parallel Channels ◽  
Flow Maldistribution ◽  
Density Wave Oscillations

Fundamental and Higher-Mode Density-Wave Oscillations in Two-Phase Flow

1972 ◽  
Vol 94 (2) ◽  
pp. 189-195 ◽  
Author(s):  
G. Yadigaroglu ◽  
A. E. Bergles
Keyword(s):  
Heat Capacity ◽  
Atmospheric Pressure ◽  
Single Phase ◽  
Two Phase Flow ◽  
Density Wave ◽  
Phase Region ◽  
Flow Instabilities ◽  
Phase Flow ◽  
Two Phase ◽  
Density Wave Oscillations

This paper treats the oscillatory two-phase flow instabilities commonly referred to as density-wave oscillations. A dynamic analysis of the single-phase region of a boiling channel, accounting for wall heat capacity and the effect of pressure variations on the movements of the boiling boundary, is summarized. Experiments conducted with a Freon-113 channel at atmospheric pressure revealed the existence of “higher-mode” oscillations. These appeared at high subcoolings and low power levels and were characterized by unexpectedly short periods that were fractions of the transit time. The presence of the higher modes and other observations are explained in terms of the dynamic behavior of the boiling boundary.

TWO-PHASE FLOW MALDISTRIBUTION IN A MINI-MANIFOLD SYSTEM

2010 ◽  
Vol 22 (1) ◽  
pp. 95-114 ◽  
Author(s):  
Iztok Zun ◽  
Jurij Gregorc ◽  
Matjaz Perpar
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Maldistribution ◽  
Manifold System
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