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Analysis of shock train leading shock structure under oscillatory backpressure.
- Source :
-
Physics of Fluids . Jun2023, Vol. 35 Issue 6, p1-6. 6p. - Publication Year :
- 2023
-
Abstract
- The leading shock in a steady shock train takes one of two forms: oblique or normal. However, the phenomenon and mechanism of the normal-to-oblique transition of the leading shock in a forced shock train have not been widely reported. In this study, leading normal and oblique shocks are experimentally observed at the same position and similar velocities in a forced oscillation shock train with an incoming Mach number of 1.83. The normal-to-oblique transition is found to be closely related to the self-excited oscillation of the shock train. In addition, we find that the direct use of free-interaction theory cannot accurately predict the leading shock angle in a moving shock train. Thus, free-interaction theory requires appropriate correction for this scenario. [ABSTRACT FROM AUTHOR]
- Subjects :
- *MACH number
*OSCILLATIONS
*SELF-induced vibration
Subjects
Details
- Language :
- English
- ISSN :
- 10706631
- Volume :
- 35
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Physics of Fluids
- Publication Type :
- Academic Journal
- Accession number :
- 164665588
- Full Text :
- https://doi.org/10.1063/5.0155988