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An evaluation and assessment of flow quality in selected NASA wind tunnels

Author
Stainback, P. C.
Published
Aug 1, 1983.
Physical Description
1 electronic document
Additional Creators
Owen, F. K. and Harvey, W. D.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
Tests have been conducted in a number of NASA wind tunnels to measure disturbance levels and spectra in their respective settling chambers, test sections, and diffusers to determine the sources of their disturbances. The present data supplements previous results in other NASA tunnels and adds to the ongoing acquisition of a disturbance level data base. The present results also serve to explain flow related sources which cause relatively large disturbance amplitudes at discrete frequencies. The installation of honeycomb, screens, and acoustic baffles in or upstream of the settling chamber can significantly reduce the disturbance levels.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19830025573.
Accession ID: 83N33844.
NASA-TM-85659.
NAS 1.15:85659.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15711691