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.
Similar content being viewed by others
References
P. S. Moller, “Radial Flow without Swirl between Parallel Disks Having Both Supersonic and Subsonic Region,” J. Basic Eng. 88 (1), Ser. D, 153–154 (1966).
S. P. Kiselev, V. P. Kiselev, S. V. Klinkov, et al., “Study of the Gas-Particle Radial Supersonic Jet in the Cold Spraying,” Surface Coatings Technol. 313, 24–30 (2017).
S. P. Kiselev, V. P. Kiselev, and V. N. Zaikovskii, “Gas Flows in Radial Micro-Nozzles with Pseudo-Shocks,” Shock Waves 28, (4), 829–849 (2018).
S. P. Kiselev, V. P. Kiselev, V. Yu. Liapidevskii, and V. N. Zaikovskii, “Modeling of Gas Flows in Radial Micro-Nozzles,” J. Phys.: Conf. Ser. 894 (1), 012042–1–012042–6 (2017).
S. P. Kiselev, V. P. Kiselev, and V. N. Zaikovskii, “Supersonic Gas Flows in Radial Nozzles,” Prikl. Mekh. Tekh. Fiz. 58 (6), 78–90 (2017) [J. Appl. Mech. Tech. Phys. 58 (6), 1021–1032 (2017)].
S. P. Kiselev, V. P. Kiselev, and V. N. Zaikovskii, “On the Mechanism of Self-Oscillations of a Supersonic Radial Jet Exhausting into an Ambient Space,” Prikl. Mekh. Tekh. Fiz. 57 (2), 53–63 (2016) [J. Appl. Mech. Tech. Phys. 57 (2), 237–246 (2016)].
L. D. Landau and E. M. Lifshits, Course of Theoretical Physics, Vol. 6: Fluid Mechanics (Pergamon Press, Oxford-Elmsford, New York, 1987).
P. D. Lax and B. Wendroff, “Systems of Conservation Laws,” Comm. Pure Appl. Math. 13, 217–237 (1960).
S. K. Godunov and V. S. Ryaben’kij, “Difference Schemes. An Introduction to the Underlying Theory,” in Studies in Mathematics and Its Applications, Vol. 19 (North-Holland, Amsterdam, 1987).
A. N. Kraiko, Theoretical Gas Dynamics: Classical and Advanced Aspects (Torus Press, Moscow, 2010) [in Russian].
G. N. Abramovich, Applied Gas Dynamics (Nauka, Moscow, 1976) [in Russian].
Author information
Authors and Affiliations
Corresponding authors
Additional information
Original Russian Text © S.P. Kiselev, V.P. Kiselev, V.N. Zaikovskii.
__________
Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 61, No. 2, pp. 81–91, March–April, 2020.
Rights and permissions
About this article
Cite this article
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
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S002189442002008X