Design optimization and testing of a pump wear ring labyrinth sealIt has been demonstrated that design optimization of labyrinth seals using the present numerical model is quite beneficial. The results shown include important, but previously unknown effects on the leakage rate, especially that of step height. Further, complete details are given of a very effective seal designed using this technique for the SSME high pressure hydrogen turbopump. Measurements using turbine flow meters revealed that the optimized configuration gives 67 percent leakage reduction over the original design. These measurements also reveal important leakage effects of the axial straining of the stator, which begins during pump start-up.
Document ID
19880061745
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Rhode, D. L. (Texas A&M Univ. College Station, TX, United States)
Morrison, G. L. (Texas A & M University College Station, United States)
Ko, S. H. (Texas A&M Univ. College Station, TX, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1988
Subject Category
Mechanical Engineering
Report/Patent Number
AIAA PAPER 88-3693
Meeting Information
Meeting: AIAA, ASME, SIAM, and APS, National Fluid Dynamics Congress