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Numerical analysis of pulsatile jet from exhaust pipe

✍ Scribed by Masaki Endo; Junjiro Iwamoto

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
635 KB
Volume
20
Category
Article
ISSN
0389-4304

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✦ Synopsis

In order to get detailed information of noise generation from a pulsatile jet discharged from the end of a pipe, the #ow "eld through the pipe and the #ow "eld downstream of the pipe end were numerically and experimentally simulated. A shock wave is discharged into the atmosphere and subsequently, a vortex ring and an underexpanded jet form and di!use. The results obtained by calculation were compared with those by experiment. As a result, good agreement was found between the calculation and the experiment. Furthermore, the relation between the noise generation and the behaviour of the vortex ring and underexpanded jet was discussed.

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πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 137 KB

In order to get detailed information of the noise generation from a pulsatile jet, the flow field downstream of the pipe end was numerically simulated. A shock wave is discharged and subsequently, a vortex ring and an underexpanded jet form and diffuse. The results obtained by calculation are compar