Published December 18, 2015
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Parbolized Stability Analysis of Jets Issuing from Serrated Nozzles
- Creators
- Sinha, Aniruddha
- Xia, Hao
- Colonius, Tim
- Others:
- Zhou, Yu
- Lucey, A. D.
- Liu, Yang
- Huang, Lixi
Abstract
Jets issuing from serrated nozzles have a correspondingly serrated time-averaged flow field. We solve the mildly non-parallel linear parabolized stability problem for such high speed turbulent jets to model the coherent wavepackets in the flow. The base flow for the analysis is the mean flow field from a large-eddy simulation database of a cold Mach 0.9 fully turbulent jet issuing from a nozzle with six serrations, a benchmark case in the literature. The fluctuation data is also filtered to extract the most-energetic coherent part using proper orthogonal decomposition. Such filtered data is shown to bear an encouraging resemblance with the predicted wavepackets.
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© 2016 Springer. First Online: 18 December 2015.Attached Files
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Additional details
- Eprint ID
- 97119
- Resolver ID
- CaltechAUTHORS:20190712-112322726
- Created
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2019-07-15Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
- Series Name
- Lecture Notes in Mechanical Engineering