Abstract
Differential pressure fluctuations are used to characterize various flow patterns in inclined two-phase flows as well as in vertical and horizontal flows. They are measured at the short observation scale equal to the pipe diameter and the long observation scale equal to ten times the diameter, to detect local and instantaneous flow changes corresponding to variations of the gas phase at the measuring interval or location. The experimental results show that nitrogen gas or air-water mixture flow in an inclined pipe of 20 mm i.d. exhibits peculiar features of statistical properties (probability density function and power spectral density function), and the flow patterns can be classified by the statistical characteristics of differential pressure fluctuations. Thus, it appears that an objective judgement of flow pattern can be made using statistical parameters such as standard deviation and coefficients of skewness and excess.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
