Geodesic
Mathematical modeling of the interaction of a single supersonic jet with a moving barrier
Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 85 (2023), pp. 146-156 Cet article a éte moissonné depuis la source Math-Net.Ru

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This paper presents the results of research on a single supersonic jet interaction with a moving obstacle. The problem is described mathematically using the Favre-averaged Navier-Stokes equations. OpenFOAM free software is used to implement physical and mathematical modeling and perform numerical calculations. The obstacle moves forward and back perpendicular to the axis of the jet from the nozzle section at a velocity of 1 m/s over a distance of 0.03 m. When the obstacle moves along the flow, it appears in the zone of increasing Mach numbers, and when it moves against the flow, in the zone of decreasing Mach numbers. For all calculation options, the shock-wave structure is found to be non-stationary. It is shown that when the obstacle moves against the jet flow, an auto-oscillatory mode with mass-consuming nature of pulsations occurs. The amplitude of oscillations is 3-5 times higher when using the configuration with the obstacle moving against the jet flow than when using the configuration with the obstacle moving along the jet flow.
Keywords: gas dynamics, mathematical modeling, numerical studies, impact supersonic jet, moving obstacle, OpenFOAM. 
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     title = {Mathematical modeling of the interaction of a single supersonic jet with a moving barrier},
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A. M. Kagenov; K. V. Kostushin; A. V. Chervakova; I. V. Eremin. Mathematical modeling of the interaction of a single supersonic jet with a moving barrier. Vestnik Tomskogo gosudarstvennogo universiteta. Matematika i mehanika, no. 85 (2023), pp. 146-156. http://geodesic.mathdoc.fr/item/VTGU_2023_85_a10/

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