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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 ,
S. A. Glazkov ,
A. R. Gorbushin ,
A. I. Ivanov  and
A. V. Semenov
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
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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
Information
The Aeronautical Journal , Volume 109 , Issue 1092 , February 2005 , pp. 75 - 82
Copyright
Copyright © Royal Aeronautical Society 2005 

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References

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