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Energy Efficient Engine Low Pressure Subsystem Flow AnalysisThe objective of this project is to provide the capability to analyze the aerodynamic performance of the complete low pressure subsystem (LPS) of the Energy Efficient Engine (EEE). The analyses were performed using three-dimensional Navier-Stokes numerical models employing advanced clustered processor computing platforms. The analysis evaluates the impact of steady aerodynamic interaction effects between the components of the LPS at design and off-design operating conditions. Mechanical coupling is provided by adjusting the rotational speed of common shaft-mounted components until a power balance is achieved. The Navier-Stokes modeling of the complete low pressure subsystem provides critical knowledge of component aero/mechanical interactions that previously were unknown to the designer until after hardware testing.
Document ID
19980232149
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Hall, Edward J. (Allison Engine Co. Indianapolis, IN United States)
Lynn, Sean R. (Allison Engine Co. Indianapolis, IN United States)
Heidegger, Nathan J. (Allison Engine Co. Indianapolis, IN United States)
Delaney, Robert A. (Allison Engine Co. Indianapolis, IN United States)
Date Acquired
September 6, 2013
Publication Date
March 1, 1998
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA/CR-1998-206597
NAS 1.26:206597
E-11067
Funding Number(s)
CONTRACT_GRANT: NAS3-27394
PROJECT: RTOP 509-10-11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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