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Numerical simulation of starting conditions for a supersonic air intake with a rectangular duct and partial release of the captured air stream through longitudinal slots

Numerical simulation of starting conditions for a supersonic air intake with a rectangular duct... The paper presents the results of a numerical simulation of conditions for starting a supersonic air intake using the bypass of part of the captured air through longitudinal slots. The air-intake duct consists of a narrowing entrance section and a constant-cross-section throat, both elements being constructed using flat surfaces, and the air intake contains longitudinal slots stretching along the lower flat surface. Various variants of the sectional bleeding of air are investigated, and changes in the flow structure in the intake duct depending on the air bleeding variant are demonstrated. Numerical modeling of the three-dimensional flow was performed for free-stream Mach number M∞ = 4 on the basis of Reynolds-averaged Navier-Stokes equations and the k−ω SST model of turbulence. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Thermophysics and Aeromechanics Springer Journals

Numerical simulation of starting conditions for a supersonic air intake with a rectangular duct and partial release of the captured air stream through longitudinal slots

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References (26)

Publisher
Springer Journals
Copyright
Copyright © I.I. Mazhul and Yu.P. Gounko 2022
ISSN
0869-8643
eISSN
1531-8699
DOI
10.1134/s0869864322040035
Publisher site
See Article on Publisher Site

Abstract

The paper presents the results of a numerical simulation of conditions for starting a supersonic air intake using the bypass of part of the captured air through longitudinal slots. The air-intake duct consists of a narrowing entrance section and a constant-cross-section throat, both elements being constructed using flat surfaces, and the air intake contains longitudinal slots stretching along the lower flat surface. Various variants of the sectional bleeding of air are investigated, and changes in the flow structure in the intake duct depending on the air bleeding variant are demonstrated. Numerical modeling of the three-dimensional flow was performed for free-stream Mach number M∞ = 4 on the basis of Reynolds-averaged Navier-Stokes equations and the k−ω SST model of turbulence.

Journal

Thermophysics and AeromechanicsSpringer Journals

Published: Jul 1, 2022

Keywords: numerical simulation; supersonic flow; longitudinal slots; air bypass; air-intake start

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