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Gas Turbine Engine Inlet Flow Distortion Guidelines
- Aerospace Standard
- ARP1420C
- Stabilized
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
The turbine-engine inlet flow distortion methodology addressed in this document applies only to the effects of inlet total-pressure distortion. Practices employed to quantify these effects continue to develop and, therefore, periodic updates are anticipated. The effects of other forms of distortion on flow stability and performance, and of any distortion on aeroelastic stability are not addressed.
The guidelines can be used as necessary to create a development method to minimize the risk of inlet/engine compatibility problems. The degree to which guidelines for descriptor use, assessment techniques, and testing outlined in this document are applied to a specific program should be consistent with the expected severity of the compatibility problem.
Rationale
This document provides definitions of stability margin and total-pressure distortion descriptors for gas turbine engines. In addition, guidelines for stability assessments, testing, instrumentation, data acquisition, and data processing are addressed.
This document contains information that is fundamental to the discipline of inlet-engine compatibility and is expected to remain stable for the foreseeable future.
Recommended Content
Aerospace Standard | Inlet Total-Pressure-Distortion Considerations for Gas-Turbine Engines |
Aerospace Standard | A Methodology for Assessing Inlet Swirl Distortion |
Aerospace Standard | Distortion Synthesis/Estimation Techniques |
Topic
Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
TABLE 1 | 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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