NASA NTRS · 19820051862
Time resolved measurements in a low aspect ratio transonic compressor stage
Abstract
The time resolved flowfield in a low aspect ratio transonic compressor stage has been studied using a high frequency response sphere probe with a bandpass of D.C. to 20 kHz in a blowdown compressor facility. Averaged over the compressor annulus, the data agree well with those measured with standard pitot type probes on the same stage in a conventional test rig. Not all the spanwise distributions agree, however. These differences are explained as errors in the pitot probe readings due to fluctuations in the flow. The experimental data are compared to the results of a three-dimensional inviscid Euler calculation.
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Epstein, A. H., Thompkins, W. T., Jr., Kerrebrock, J. L., Ng, W. F.. 1982-04-01. Time resolved measurements in a low aspect ratio transonic compressor stage. https://ntrs.nasa.gov/citations/19820051862
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