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
StatePublished - Dec 1 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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  • Cite this

    Fedorov, A., & Tumin, A. (2002). Evolution of disturbances in entropy layer on a blunted plate in supersonic flow. In 32nd AIAA Fluid Dynamics Conference and Exhibit (32nd AIAA Fluid Dynamics Conference and Exhibit).