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Inlet Total-Pressure-Distortion Considerations for Gas-Turbine Engines
- Aerospace Standard
- AIR1419C
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This document addresses many of the significant issues associated with effects of inlet total-pressure distortion on turbine-engine performance and stability. It provides a review of the development of techniques used to assess engine stability margins in the presence of inlet total-pressure distortion. Specific performance and stability issues that are covered by this document include total-pressure recovery and turbulence effects and steady and dynamic inlet total-pressure distortion.
Rationale
The intent of this document is to provide a basic understanding of the effects of inlet total-pressure distortion on the performance of gas turbine engines, particularly in military applications. The document was revised to incorporate an Introduction containing material inadvertently omitted from revision B.
Recommended Content
Aerospace Standard | Gas Turbine Engine Inlet Flow Distortion Guidelines |
Aerospace Standard | A Methodology for Assessing Inlet Swirl Distortion |
Aerospace Standard | Inlet/Engine Compatibility - From Model to Full Scale Development |
Topic
Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Table 1 | Distortion assessment uses during the propulsion system life cycle | |
Unnamed Dataset 2 | ||
Table 2 | Alternative stability margin definitions | |
Table 3 | Different stability margin definitions result in different distortion accounting | |
Table 4 | Effect of stability limit line extrapolation on stability accounting | |
Table 5 | Methodology screens and coefficient determination | |
Table 6 | Stability assessment factors | |
Table 7 | Fan stability-pressure-ratio loss coefficients | |
Table 8 | Fan stability margin assessment | |
Table 9 | Typical stability margin assessment | |
Table 10 | Classical circumferential screens | |
Table 11 | Radial and mixed screens | |
Table 12 | Operational conditions | |
Table 13 | Turbofan thrust loss synthesis | |
Table 14 | Inlet and aircraft component tests | |
Table 15 | Engine component and engine tests | |
Table 16 | Propulsion system tests | |
Table 17 | Flight test conditions | |
Table 19 | Data scaling guidelines: Strouhal number constant (same Reynolds number and Mach number) |
Issuing Committee
S-16 Turbine Engine Inlet Flow Distortion Committee
Scope: Committee S-16 develops uniform procedures for adoption by industry. These procedures will permit representation of inlet distortion and evaluation of its effect on propulsion systems' stability and performance.
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