Publication Date:
2019-06-28
Description:
A tip vortex interaction model originally developed for compressors has been extended and adapted for use with counterrotating open rotors. Comparison of available acoustic data with predictions (made with and without the tip vortex model included) illustrate the importance of this interaction effect. This report documents the analytical modeling, a limited experimental verification, and certain key parametric studies pertaining to the tip vortex as a noise source mechanism for the unsteady loading noise of counterrotating properllers.
Keywords:
ACOUSTICS
Type:
NASA-CR-185135
,
NAS 1.26:185135
Format:
application/pdf