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 Citations (Scopus)

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 - 2002
Event32nd AIAA Fluid Dynamics Conference and Exhibit 2002 - St. Louis, MO, United States
Duration: Jun 24 2002Jun 26 2002

Other

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

Fingerprint

Supersonic flow
Euler equations
Entropy
Mass transfer

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

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

Evolution of disturbances in entropy layer on a blunted plate in supersonic flow. / Fedorov, Alexander; Tumin, Anatoli.

32nd AIAA Fluid Dynamics Conference and Exhibit. 2002.

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

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 2002, St. Louis, MO, United States, 6/24/02.
Fedorov A, Tumin A. Evolution of disturbances in entropy layer on a blunted plate in supersonic flow. In 32nd AIAA Fluid Dynamics Conference and Exhibit. 2002
Fedorov, Alexander ; Tumin, Anatoli. / Evolution of disturbances in entropy layer on a blunted plate in supersonic flow. 32nd AIAA Fluid Dynamics Conference and Exhibit. 2002.
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