Stochastisation of coherent structures of pulsed pressure waves in a bubbly liquid

2000 ◽  
Author(s):  
Nina V. Malykh
Keyword(s):  
Coherent Structures ◽  
Bubbly Liquid ◽  
Pressure Waves

The dynamics of pressure waves in a bubbly liquid with a hydrate-forming gas in channels with varying geometry and gas content

2021 ◽  
Author(s):  
A. S. Chiglintseva ◽  
I. K. Gimaltdinov ◽  
A. A. Nasyrov ◽  
I. A. Chiglintsev
Keyword(s):  
Gas Content ◽  
Bubbly Liquid ◽  
Pressure Waves

scholarly journals The speed of sound in a gas–vapour bubbly liquid

2015 ◽  
Vol 5 (5) ◽  
pp. 20150024 ◽  
Author(s):  
Andrea Prosperetti
Keyword(s):  
Phase Change ◽  
Speed Of Sound ◽  
Low Frequency ◽  
Major Effect ◽  
Liquid Oxygen ◽  
Bubbly Liquid ◽  
Pressure Waves ◽  
Cavitating Flows ◽  
Frequency Range ◽  
Special Concern

In addition to the vapour of the liquid, bubbles in cavitating flows usually contain also a certain amount of permanent gas that diffuses out of the liquid as they grow. This paper presents a simplified linear model for the propagation of monochromatic pressure waves in a bubbly liquid with these characteristics. Phase change effects are included in detail, while the gas is assumed to follow a polytropic law. It is shown that even a small amount of permanent gas can have a major effect on the behaviour of the system. Particular attention is paid to the low-frequency range, which is of special concern in flow cavitation. Numerical results for water and liquid oxygen illustrate the implications of the model.

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