Evolution of disturbances in entropy layer on a blunted plate in supersonic flow

Alexander Fedorov, Anatoli Tumin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

Linear and nonlinear stability analyses of the entropy layer over a blunted plate are discussed. Results of the linear stability theory are compared with the direct numerical solution of the Euler equations when a disturbance of prescribed frequency is imposed on the mean flow. A solver of the Euler equations based on the Space-Time CE/SE method predicts linear and nonlinear dynamics of unstable disturbances with high accuracy. A relatively coarse grid allows for simulation of nonlinear disturbances with the mass-flux amplitude up to 9%. The nonlinear effect demonstrates a trend to saturation of the entropy layer disturbances.

Original languageEnglish (US)
Title of host publication32nd AIAA Fluid Dynamics Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101137
DOIs
StatePublished - 2002
Event32nd AIAA Fluid Dynamics Conference and Exhibit 2002 - St. Louis, MO, United States
Duration: Jun 24 2002Jun 26 2002

Publication series

Name32nd AIAA Fluid Dynamics Conference and Exhibit

Other

Other32nd AIAA Fluid Dynamics Conference and Exhibit 2002
CountryUnited States
CitySt. Louis, MO
Period6/24/026/26/02

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

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