A scenario for oblique shock wave induced vortex breakdown

Michael K. Smart, Iraj M. Kalkhoran

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

Abstract

The dramatic flow reorganization observed in experiments involving strong oblique shock wave/vortex interactions could have significant implications for supersonic aircraft. Development of a predictive technique for determining the type of flow structure resulting from a particular vortex/shock combination is therefore of great interest. Thus far the three-dimensional nature of oblique shock wave/vortex interaction has made its measurement and analysis difficult in both experimental and numerical simulation frameworks. As an alternative, the problem has been examined here from a physically intuitive standpoint in order to better understand its dominant features. This approach has enabled a fluid dynamic scenario involving supersonic vortex breakdown to be developed as an explanation for the observed flow reorganization. An approximate analysis for predicting oblique shock wave induced vortex breakdown was developed using this scenario. Results of the analysis for some experimentally investigated vortex/shock combinations indicate that the prediction of vortex breakdown corresponds closely with the appearance of a fully developed separated shock structure upstream of the original oblique shock plane. This con-elation is seen as strong circumstantial evidence that vortex breakdown is responsible for the dramatic changes observed in the interaction flowfields.

Original languageEnglish (US)
Title of host publication35th Aerospace Sciences Meeting and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
StatePublished - 1997
Event35th Aerospace Sciences Meeting and Exhibit, 1997 - Reno, United States
Duration: Jan 6 1997Jan 9 1997

Other

Other35th Aerospace Sciences Meeting and Exhibit, 1997
CountryUnited States
CityReno
Period1/6/971/9/97

Fingerprint

oblique shock waves
vortex breakdown
shock wave
Shock waves
vortex
Vortex flow
shock
vortices
supersonic aircraft
interactions
fluid dynamics
upstream
Supersonic aircraft
flow structure
Flow structure
Fluid dynamics
predictions
aircraft
simulation

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

Cite this

Smart, M. K., & Kalkhoran, I. M. (1997). A scenario for oblique shock wave induced vortex breakdown. In 35th Aerospace Sciences Meeting and Exhibit [AIAA Paper 97-0069] American Institute of Aeronautics and Astronautics Inc, AIAA.

A scenario for oblique shock wave induced vortex breakdown. / Smart, Michael K.; Kalkhoran, Iraj M.

35th Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics Inc, AIAA, 1997. AIAA Paper 97-0069.

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

Smart, MK & Kalkhoran, IM 1997, A scenario for oblique shock wave induced vortex breakdown. in 35th Aerospace Sciences Meeting and Exhibit., AIAA Paper 97-0069, American Institute of Aeronautics and Astronautics Inc, AIAA, 35th Aerospace Sciences Meeting and Exhibit, 1997, Reno, United States, 1/6/97.
Smart MK, Kalkhoran IM. A scenario for oblique shock wave induced vortex breakdown. In 35th Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics Inc, AIAA. 1997. AIAA Paper 97-0069
Smart, Michael K. ; Kalkhoran, Iraj M. / A scenario for oblique shock wave induced vortex breakdown. 35th Aerospace Sciences Meeting and Exhibit. American Institute of Aeronautics and Astronautics Inc, AIAA, 1997.
@inproceedings{f0abb8dee0d34e708e86232913f6b5fd,
title = "A scenario for oblique shock wave induced vortex breakdown",
abstract = "The dramatic flow reorganization observed in experiments involving strong oblique shock wave/vortex interactions could have significant implications for supersonic aircraft. Development of a predictive technique for determining the type of flow structure resulting from a particular vortex/shock combination is therefore of great interest. Thus far the three-dimensional nature of oblique shock wave/vortex interaction has made its measurement and analysis difficult in both experimental and numerical simulation frameworks. As an alternative, the problem has been examined here from a physically intuitive standpoint in order to better understand its dominant features. This approach has enabled a fluid dynamic scenario involving supersonic vortex breakdown to be developed as an explanation for the observed flow reorganization. An approximate analysis for predicting oblique shock wave induced vortex breakdown was developed using this scenario. Results of the analysis for some experimentally investigated vortex/shock combinations indicate that the prediction of vortex breakdown corresponds closely with the appearance of a fully developed separated shock structure upstream of the original oblique shock plane. This con-elation is seen as strong circumstantial evidence that vortex breakdown is responsible for the dramatic changes observed in the interaction flowfields.",
author = "Smart, {Michael K.} and Kalkhoran, {Iraj M.}",
year = "1997",
language = "English (US)",
booktitle = "35th Aerospace Sciences Meeting and Exhibit",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",

}

TY - GEN

T1 - A scenario for oblique shock wave induced vortex breakdown

AU - Smart, Michael K.

AU - Kalkhoran, Iraj M.

PY - 1997

Y1 - 1997

N2 - The dramatic flow reorganization observed in experiments involving strong oblique shock wave/vortex interactions could have significant implications for supersonic aircraft. Development of a predictive technique for determining the type of flow structure resulting from a particular vortex/shock combination is therefore of great interest. Thus far the three-dimensional nature of oblique shock wave/vortex interaction has made its measurement and analysis difficult in both experimental and numerical simulation frameworks. As an alternative, the problem has been examined here from a physically intuitive standpoint in order to better understand its dominant features. This approach has enabled a fluid dynamic scenario involving supersonic vortex breakdown to be developed as an explanation for the observed flow reorganization. An approximate analysis for predicting oblique shock wave induced vortex breakdown was developed using this scenario. Results of the analysis for some experimentally investigated vortex/shock combinations indicate that the prediction of vortex breakdown corresponds closely with the appearance of a fully developed separated shock structure upstream of the original oblique shock plane. This con-elation is seen as strong circumstantial evidence that vortex breakdown is responsible for the dramatic changes observed in the interaction flowfields.

AB - The dramatic flow reorganization observed in experiments involving strong oblique shock wave/vortex interactions could have significant implications for supersonic aircraft. Development of a predictive technique for determining the type of flow structure resulting from a particular vortex/shock combination is therefore of great interest. Thus far the three-dimensional nature of oblique shock wave/vortex interaction has made its measurement and analysis difficult in both experimental and numerical simulation frameworks. As an alternative, the problem has been examined here from a physically intuitive standpoint in order to better understand its dominant features. This approach has enabled a fluid dynamic scenario involving supersonic vortex breakdown to be developed as an explanation for the observed flow reorganization. An approximate analysis for predicting oblique shock wave induced vortex breakdown was developed using this scenario. Results of the analysis for some experimentally investigated vortex/shock combinations indicate that the prediction of vortex breakdown corresponds closely with the appearance of a fully developed separated shock structure upstream of the original oblique shock plane. This con-elation is seen as strong circumstantial evidence that vortex breakdown is responsible for the dramatic changes observed in the interaction flowfields.

UR - http://www.scopus.com/inward/record.url?scp=84983126678&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84983126678&partnerID=8YFLogxK

M3 - Conference contribution

BT - 35th Aerospace Sciences Meeting and Exhibit

PB - American Institute of Aeronautics and Astronautics Inc, AIAA

ER -