Properties of disturbance waves in vertical annular two-phase flow

2008 ◽  
Vol 238 (12) ◽  
pp. 3528-3541 ◽  
Author(s):  
Pravin Sawant ◽  
Mamoru Ishii ◽  
Tatsuya Hazuku ◽  
Tomoji Takamasa ◽  
Michitsugu Mori
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Disturbance Waves

scholarly journals An experimental study of disturbance waves in boiling two-phase flow.

1985 ◽  
Vol 51 (463) ◽  
pp. 1026-1032
Author(s):  
Shigeyasu NAKANISHI ◽  
Masuo KAJI ◽  
Shoji YAMAUCHI ◽  
To'oru SAWAI
Keyword(s):  
Experimental Study ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Disturbance Waves

Effects of liquid viscosity on inception of disturbance waves and droplets in gas–liquid annular two-phase flow

2007 ◽  
Vol 36 (8) ◽  
pp. 529-541 ◽  
Author(s):  
Koji Mori ◽  
Haruyuki Yoshida ◽  
Kuniaki Nakano ◽  
Yoichi Shiomi
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Liquid Viscosity ◽  
Two Phase ◽  
Disturbance Waves

Application of the image analysis on the investigation of disturbance waves in vertical upward annular two-phase flow

2020 ◽  
Vol 114 ◽  
pp. 110062 ◽  
Author(s):  
Ruinan Lin ◽  
Ke Wang ◽  
Li Liu ◽  
Yongxue Zhang ◽  
Shaohua Dong
Keyword(s):  
Image Analysis ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Disturbance Waves

Wave venation in downward gas-liquid two-phase flow (part II, cluster analysis for huge waves and disturbance waves and characteristics of those waves)

1996 ◽  
Vol 25 (8) ◽  
pp. 511-521 ◽  
Author(s):  
Koji Mori ◽  
Masuo Kaji ◽  
Yoshiyuki Kondo ◽  
Kotohiko Sekoguchi ◽  
Masao Nakazatomi ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Disturbance Waves ◽  
Flow Part

The motion and frequency of large disturbance waves in annular two-phase flow of air-water mixtures

1963 ◽  
Vol 18 (8) ◽  
pp. 537-552 ◽  
Author(s):  
N. Hall Taylor ◽  
G.F. Hewitt ◽  
P.M.C. Lacey
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Disturbance Waves ◽  
Large Disturbance

scholarly journals Study on Wave Venation in Gas-Liquid Two-Phase Flow. 3rd Report. Distinction between Huge Waves and Disturbance Waves and Characteristics of Huge Waves.

1996 ◽  
Vol 62 (600) ◽  
pp. 3149-3156 ◽  
Author(s):  
Koji MORI ◽  
Masuo KAJI ◽  
Katsuhiro INOUE ◽  
Masao NAKAZATOMI ◽  
Hideo SHIMIZU ◽  
...  
Keyword(s):  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Disturbance Waves

Disturbance Waves in Annular Two-Phase Flow

1969 ◽  
Vol 184 (3) ◽  
pp. 142-150 ◽  
Author(s):  
G. F. Hewitt
Keyword(s):  
Film Thickness ◽  
Annular Flow ◽  
Two Phase Flow ◽  
Wave Frequency ◽  
Phase Flow ◽  
Two Phase ◽  
Wave Growth ◽  
Disturbance Waves ◽  
Break Up ◽  
The Waves

Many of the important features of annular two-phase flow are governed principally by the existence and behaviour of waves on the interface between the phases. In particular, the annular flow system is characterized by rapid wave growth leading to extremely large waves known as ‘disturbance waves’. By studying these waves, much can be learnt about annular flow. This paper summarizes previously published Harwell work in which a number of parameters of the waves have been established using a variety of experimental techniques, including (1) high-speed ciné studies using both normal and axial viewing; (2) tracking of the waves using flush-mounted conductance probes; (3) continuous film thickness measurements using a fluorescent technique; and (4) velocity measurement using an optical-mechanical stroboscopic device. Extensive data have been obtained on wave frequency, amplitude, velocity, and break-up. If a long enough channel is used, the wave frequency and velocity become constant. It is likely that wave growth continues but that break-up of the waves occurs giving rise to liquid droplet entrainment which is balanced by droplet redeposition, thus giving a quasi-stable situation. Although the frequency becomes constant, the waves are by no means periodic. The fluorescence measurements show that the waves have an amplitude about five times greater than the mean film thickness and that the wave has an axial size of about the same order as the tube diameter. The large amplitude of the waves is confirmed by the axial view photography which also demonstrates large and transient amplitude variations around the inner periphery of the wave.

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