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Investigation of Supersonic Underexpanded Jets Exhausting into a Slotted Submerged Space

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Abstract

Results of experimental and numerical modeling of supersonic underexpanded jets exhausting into a slotted submerged space formed by two parallel disks are presented. It is demonstrated that the structure of the exhausting off-design jet depends on the distance between the disks. The friction force acting from the disks on the gas is responsible for significant changes in the supersonic jet structure At a certain distance between the disks, there arises a curvilinear shock wave, followed by a subsonic flow region. In this case, the jet boundary acquires a fan-shaped structure rather than a typical barrel-shaped structure.

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Correspondence to S. P. Kiselev or V. P. Kiselev.

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Original Russian Text © S.P. Kiselev, V.P. Kiselev, V.N. Zaikovskii.

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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 61, No. 2, pp. 81–91, March–April, 2020.

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Kiselev, S.P., Kiselev, V.P. & Zaikovskii, V.N. Investigation of Supersonic Underexpanded Jets Exhausting into a Slotted Submerged Space. J Appl Mech Tech Phy 61, 225–234 (2020). https://doi.org/10.1134/S002189442002008X

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  • DOI: https://doi.org/10.1134/S002189442002008X

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