Effect of Transducer Flushness on Measured Surface Pressure Fluctuations in Flight

Author:: Kuznetsov, V. B.
Published:: October 18, 2004.
Physical Description:: 1 electronic document
Additional Creators:: Andrianov, E. V, Golubev, A. Yu., Racki, R. G., Efimtsov, B. M., Andersson, A. O., and Rizzi, S. A.

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Summary:

The procedure for investigating the effect of deviation from flush mounting of pressure transducers on the exterior of Tu-144LL in flight is described. Experimental data in the mach-number range 0.58 - 2.0 are presented for distortion of the measured wall-pressure fluctuation spectra of the turbulent boundary layer by recessed and protruding transducers. The results of flight experiments are compared with data of wind tunnel experiments. The distortion of measured turbulent boundary layer wall pressure fluctuations caused by transducer-surface deviation from the surrounding surface as a function of dimensionless parameters is predicted and presented on the basis of dimensional analysis.

Other Subject(s):

Aerodynamics

Collection:

NASA Technical Reports Server (NTRS) Collection.

Note:

Document ID: 20050041756.
AIAA Paper 2005-0800.
43rd AIAA Aerospace Sciences Meeting and Exhibit; 10-13 Jan. 2005; Reno, NV; United States.

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