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Transonic flow hysteresis in a twin intake model

Published online by Cambridge University Press:  01 August 2018

A. Kuzmin Open the ORCID record for A. Kuzmin [Opens in a new window]
A. Kuzmin*
Affiliation:
Department of Fluid DynamicsSt. Petersburg State UniversitySt. PetersburgRussia
*
*[email protected]
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Abstract

Turbulent airflow in a supersonic intake model of rectangular cross-section is studied numerically. Instability of shock waves formed in the intake and ahead of the entrance is examined. Solutions of the Reynolds-averaged Navier–Stokes equations are obtained with a finite-volume solver of second-order accuracy. The expulsion and the swallowing of the shocks with a variation of free-stream parameters are studied at both subsonic and supersonic conditions prescribed at the outlet. Hysteresis in the dependence of 2D flow on the free-stream velocity and angle-of-attack is documented. An influence of 3D effects on the flow is examined.

Keywords

Supersonic intakeshock wavesinstabilityhysteresis
Type
Research Article
Information
The Aeronautical Journal , Volume 122 , Issue 1256 , October 2018 , pp. 1557 - 1567
Copyright
© Royal Aeronautical Society 2018 

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