Abstract
SUMMARY A rarefaction wave is produced in a two-dimensional channel by the impulsive retraction of a piston. In a finite section of the channel there is a slight variation in cross-section, and the effect of this variation on the rarefaction wave is considered. It is found that, after passing through the transition section, a perturbation is superimposed on the main wave which tends to decrease the flow velocity by a term which decreases inversely as the time for a point moving with the wave, but increases linearly with the time at a fixed point in the channel. In the transition section the disturbances accumulate and tend to increase the flow velocity if there is a throat, eventually producing a sonic regime. An attempt is made to describe the establishment of steady subsonic-supersonic flow in a converging-diverging nozzle.
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: The Quarterly Journal of Mechanics and Applied Mathematics
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.
