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Experimental investigation of the effect of nozzle shape and test section perforation on the stationary and non-stationary characteristics of flow field in the large transonic TsAGI T-128 Wind tunnel

Published online by Cambridge University Press:  03 February 2016

V. I. Biryukov
Affiliation:
Central Aerohydrodynamic Institute, TsAGI, Zhukovsky, Russia
S. A. Glazkov
Affiliation:
Central Aerohydrodynamic Institute, TsAGI, Zhukovsky, Russia
A. R. Gorbushin
Affiliation:
Central Aerohydrodynamic Institute, TsAGI, Zhukovsky, Russia
A. I. Ivanov
Affiliation:
Central Aerohydrodynamic Institute, TsAGI, Zhukovsky, Russia
A. V. Semenov
Affiliation:
Central Aerohydrodynamic Institute, TsAGI, Zhukovsky, Russia

Abstract

The results are presented for a cycle of experimental investigations of flow field characteristics (static pressure distribution, static pressure fluctuations, upwash, boundary-layer parameters) in the perforated test section of the transonic TsAGI T-128 Wind Tunnel. The investigations concern the effect of nozzle shape, wall open-area ratio, Mach and Reynolds numbers on the above-outlined flow characteristics. During the tests, the main Wind-tunnel drive power is measured. Optimal parameters of the nozzle shape and test section perforation are obtained to minimise acoustic perturbations in the test section and their non-uniformity in frequency, static pressure field non-uniformity, nozzle and test section drag and, accordingly, required main Wind-tunnel drive power.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society 2005 

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References

1. Neyland, V.M., Ivanov, A.I., Semenov, A.V., Semenova, O.K. and Amirjanz, G.A., Adaptive-wall perforated test section for transonic Wind-tunnels, AGARD-CP-585, 1997, 16, pp 116.Google Scholar
2. Neyland, V.M., Ivanov, A.I. and Piliugin, A.V.. Some features of the test procedure in the new test section No 3 of the TsAGI Wind-tunnel T-128, Proc of the 2nd International Conference On Experimental Fluid Mechanics, 4-8 July 1994, Torino, Italy, pp 441448.Google Scholar
3. Glazkov, S.A., Gorbushin, A.R., Ivanov, A.I. and Semenov, A.V.. Recent experience in improving the accuracy of wall interference corrections in TsAGI T-128 Wind-tunnel. Progress in Aerospace Sciences, Pergamon Press, 2001, 37, pp 263298.Google Scholar
4. Holthusen, H. and Kooi, J.W., Model and full scale investigations of the low frequency vibration phenomena of the DNW open jet. AGARD-CP-585, 1997, 26, pp 18.Google Scholar
5. Stanniland, D.R.. Mchugh, C.A. and Green, J.E.. Improvement of the flow quality in the ARA transonic tunnel by means of a long cell honeycomb. Wind tunnels and Wind-tunnel test techniques. RAeS Conference, 1992, pp 54.154.12.Google Scholar