Aspects Regarding the Implementation, Capture and Measurement of Noise on the Măgurele Air Test Stand
Radu Cristian GABOR, Grigore CICAN, Mihnea GALL
Abstract. This paper presents a comprehensive analysis of the air supply system implemented at the Măgurele Air Test Stand, an essential infrastructure for experimental research in noise reduction devices for turbojet engines. The paper meticulously details the system configuration, component integration, instrumentation, and control methodologies designed to simulate realistic engine operating conditions, including subsonic and transonic flow regimes. Experimental procedures focused on evaluating system stability, thermal response, and pressure regulation accuracy, providing critical data for validating the performance of a home-developed air injection system aimed at noise suppression through fluidic chevron simulation. The experimental air supply system at the Măgurele Air Test Stand has proven to be a critical infrastructure for advanced research in noise reduction technologies for turbojet engines. Its precise flow control, robust safety mechanisms, and modular design establish it as an indispensable asset for dynamic experimental setups involving pressure-gain combustion and detonation-based propulsion studies. Therefore, this paper serves not only as a detailed documentation of the existing experimental setup but also as a compulsory reference for future research activities, ensuring that all subsequent experimental investigations build upon a validated and thoroughly characterized technical foundation.
Keywords
Air Injection System, Noise, Acoustics, Chevron Nozzles, Test Stand
Published online 7/20/2026, 6 pages
Copyright © 2026 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Radu Cristian GABOR, Grigore CICAN, Mihnea GALL, Aspects Regarding the Implementation, Capture and Measurement of Noise on the Măgurele Air Test Stand, Materials Research Proceedings, Vol. 69, pp 275-280, 2026
DOI: https://doi.org/10.21741/9781644904251-49
The article was published as article 49 of the book CEAS – AIDAA Conference 2025
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] A. V. Cojocea et al., “Experimental Investigations of Hydrogen Fuelled Pulsed Detonation Combustor”, ASME Turbo Expo 2022. https://doi.org/10.1115/GT2022-82393
[2] B. Callender, E. Gutmark, and S. Martens, “A comprehensive study of fluidic injection technology for jet noise reduction”, AIAA-2007-3608, 2007. https://doi.org/10.2514/6.2007-3608
[3] M. Massey et al., “Effect of Chevrons on Jet Noise Reduction,” AIAA Journal, 2019. https://doi.org/10.3390/aerospace11060465
[4] A. Bogoi et al., “Experimental Pressure Gain Analysis of Pulsed Detonation Engine,” Aerospace, vol. 11, no. 6, p. 465, 2024.
[5] NASA Tech Briefs, “Fluidically Enhanced Nozzles for Noise Suppression,” 2021.
[6] J. D. Bridges and C. A. Brown, “Parametric Testing of Chevron Nozzles,” NASA TM-2004-213107.
