Abstract
Hydrostatic gas noncontact seals are becoming more widely used as high-speed shaft seals for gas turbomachinery. Previous work for incompressible flow has been adapted to cover the gas flow dynamics of a hybrid taper/flat face seal, and the equivalent annular arrangement. The seal gap stability is discussed, along with various tests to confirm performance. The gas flow characteristics based on analysis are shown to be consistent with test data. This work has enabled gas seals to achieve successful operation in high-speed applications. Presented as an American Society of Lubrication Engineers paper at the ASLE/ASME Tribology conference in Atlanta, Georgia, October 8–10, 1985
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