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Erosion in radial inflow turbines. Volume 1: Erosive particle trajectory similaritySimilarity parameters from the equations of motion of particles immersed in a gas flow are derived. These parameters relate the particles which follow a certain trajectory in an equivalent cold gas turbine to particles that will follow the same trajectory in a real hot gas turbine. Numerical solutions of the trajectories that particles follow in the vortex and rotor regions of a radial inflow turbine are used to verify the range of Reynolds numbers in which the derived similarity parameters are applicable. In addition, an example is presented of typical particle sizes that can be observed in high speed photographic data collection and at the same time simulate the trajectories of particles in a real hot gas turbine.
Document ID
19740011282
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Clevenger, W. B., Jr. (Cincinnati Univ. OH, United States)
Tabakoff, W. (Cincinnati Univ. OH, United States)
Date Acquired
September 3, 2013
Publication Date
February 1, 1974
Subject Category
Propulsion Systems
Report/Patent Number
NASA-CR-134589
Accession Number
74N19395
Funding Number(s)
CONTRACT_GRANT: NGR-36-004-055
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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