Theory versus experiment for the rotordynamic coefficients of annular gas seals. II - Constant-clearance and convergent-tapered geometryThe leakage and rotordynamic coefficients of constant-clearance and convergent-tapered annular gas seals were measured in an experimental test facility. The results are presented along with the theoretically predicted values. Of particular interest is the prediction that optimally tapered seals have significantly larger direct stiffness than straight seals. The experimental results verify this prediction. Generally the theory does quite well, but fails to predict the large increase in direct stiffness when the fluid is pre-rotated.
Document ID
19860039744
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Nelson, C. C. (Texas A&M Univ. College Station, TX, United States)
Childs, D. W. (Texas A&M Univ. College Station, TX, United States)
Nicks, C. (Texas A&M Univ. College Station, TX, United States)
Elrod, D. (Texas A & M University College Station, United States)