The pressurization-flow characteristic of a helical viscous compressor is basic to the design of precision air bearings and non-contact gas seals which make use of the spiral-grooved surface feature. The method of Compressible Narrow Groove Analysis (CNGA) makes possible mapping of the pressurization-flow characteristic of a helical viscous compressor for a wide range of the compressibility number. In this manner, design features previously established by Quasi-Incompressible Narrow Groove Analysis (QINGA) are examined with respect to the influence of local compressibility.
Issue Section:
Technical Papers
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,” ASME J. Tribol.
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.Copyright © 2001
by ASME
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