NDLI: Combined pressure and temperature distortion effects on internal flow of a turbofan engine

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Combined pressure and temperature distortion effects on internal flow of a turbofan engine

Content Provider	NASA Technical Reports Server (NTRS)
Author	Soeder, R. H. Braithwaite, W. M.
Copyright Year	1979
Description	An additional data base for improving and verifying a computer simulation developed by an engine manufacturer was obtained. The multisegment parallel compressor simulation was designed to predict the effects of steady-state circumferential inlet total-pressure and total-temperature distortions on the flows into and through a turbofan compression system. It also predicts the degree of distortion that will result in surge of the compressor. The effect of combined 180 deg square-wave distortion patterns of total pressure and total temperature in various relative positions is reported. The observed effects of the combined distortion on a unitary bypass ratio turbofan engine are presented in terms of total and static pressure profiles and total temperature profiles at stations ahead of the inlet guide vanes as well as through the fan-compressor system. These observed profiles are compared with those predicted by the complex multisegment model. The effects of relative position of the two components comprising the combined distortion on the degree resulting in surge are discussed. Certain relative positions required less combined distortion than either a temperature or pressure distortion by itself.
File Size	809509
Page Count	19
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19790015792
Archival Resource Key	ark:/13960/t4fn60036
Language	English
Publisher Date	1979-01-01
Access Restriction	Open
Subject Keyword	Aircraft Propulsion And Power Static Pressure Turbocompressors Stability Temperature Inversions Circumferences Pressure Distribution Flow Characteristics Distortion Computerized Simulation Inlet Flow Engine Tests Steady State Internal Flow Predictions Turbofan Engines Models Internal Compression Inlets Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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