CaltechAUTHORS
  A Caltech Library Service

Parbolized Stability Analysis of Jets Issuing from Serrated Nozzles

Sinha, Aniruddha and Xia, Hao and Colonius, Tim (2015) Parbolized Stability Analysis of Jets Issuing from Serrated Nozzles. In: Fluid-Structure-Sound Interactions and Control: Proceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer , Berlin, Germany, pp. 211-215. ISBN 9783662488669. https://resolver.caltech.edu/CaltechAUTHORS:20190712-112322726

[img] PDF - Submitted Version
See Usage Policy.

251Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20190712-112322726

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.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/978-3-662-48868-3_34DOIBook Section
https://link.springer.com/chapter/10.1007/978-3-662-48868-3_34PublisherBook Section
ORCID:
AuthorORCID
Sinha, Aniruddha0000-0002-7122-3549
Colonius, Tim0000-0003-0326-3909
Additional Information:© 2016 Springer. First Online: 18 December 2015.
Subject Keywords:Instability wavepackets, parabolized stability equations, coherent structures, jets, chevroned jets
Series Name:Lecture Notes in Mechanical Engineering
Record Number:CaltechAUTHORS:20190712-112322726
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190712-112322726
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97119
Collection:CaltechAUTHORS
Deposited By: Melissa Ray
Deposited On:15 Jul 2019 20:48
Last Modified:09 Mar 2020 13:19

Repository Staff Only: item control page