Abstract
Aiming at the precise flight measurements of acoustic field near the after-body of a transport aircraft, based on an anechoic jet flow experimental facility, B&K4948 microphone was adopted for real installed configuration simulation. The dynamic measuring system is constructed with acoustic spectrum analysis and hot wire anemometer measurement. A series of experiments for different boundary layer flow structure with various microphone protuberance heights are carried out, and the relationship between load spectrum of pressure fluctuation and the flow structure of boundary layer is analyzed, the interference effect of sound measurement component on the acoustic and fluid field was also achieved. The results demonstrate that there are differences of fluctuating pressure spectrum between different boundary flow in subsonic and the fluctuating pressure spectrum are not sensitive to the acoustic measuring element with limited protrusion height in fully developed turbulent boundary layer.
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References
Zhang, Z., Ren, F., Feng, B.: Noise Task of Aircraft-Resolve in Engineering. Acta Aeronautica Et Astronautica Sinica 29(5), 1207–1212 (2008)
Lv, S.: Three-dimension reconstruction of pit corrosion damage morphology and digital simulation. Applied Mechanics and Materials 44-47, 4186–4190 (2011)
Lighthill, M.J.: On sound generated aerodynamically, I. General theory. Proceedings of the Royal Society of London A211, 564–587 (1952)
Curle, N.: The influence of solid boundary upon aerodynamical sound. Proceedings of the Royal Society of London A231, 505–514 (1955)
Zhu, B., Tang, G., Gu, G., Li, P.: An investigation of background noise measurment technology in aeroacoustic wind tunnel. Journal of Experiment in Fluid Mechanics 23(4), 56–60 (2009)
Henning, A., Koop, L., Ehrenfried, K.: Simultaneous particle image velocimetry and microphone array measurements on a rod-airfoil configuration. AIAA Journal 48(10), 2263–2273 (2010)
Humphreys, W., Brooks, T., Hunter, W.: Design and use of microphone Directional arrays for aeroacoustics measurements. AIAA 1998-0471 (1998)
Runstadler, P.W., Kline, S.J., Reynold, W.C.: An experimental investigation of the flow structure of a turbulent boundary layer. AFOSR-TN-5421 (1963)
Neuhart, D.H., Jenkins, L.N., Choudhari, M.M., Khorrami, M.R.: Measurements of the Flow-field Interaction Between Tandem Cylinders. In: 15th AIAA/CEAS Aeroacoustics Conference, AIAA 2009-3275 (2009)
Howe, M.S.: Acoustics of fluid-structure interaction. Cambridge University Press, Cambridge (1998)
Zhu, Y.: A Review on Flow Noise Generated by Boundary Layers. Journal of Shanghai Jiaotong University 18(3), 131–138 (1984)
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© 2011 Springer-Verlag Berlin Heidelberg
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Guangjun, Y., Cunru, B., Kai, P., Jing, S., Fei, X. (2011). Measurement Effects Study of Microphone on Fluctuating Pressure of Boundary Layer. In: Zheng, D. (eds) Advances in Electrical Engineering and Electrical Machines. Lecture Notes in Electrical Engineering, vol 134. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-25905-0_39
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DOI: https://doi.org/10.1007/978-3-642-25905-0_39
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