This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Gas Turbine Jet Exhaust Noise Prediction
- Aerospace Standard
- ARP876E
- Reaffirmed
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
ARP876 is intended to provide specific recommended procedures for the prediction of gas turbine jet exhaust system noise sources. Procedures are issued as separate Sections, to allow for future updating as additional methods, consistent with state-of-the-art, become available.
Rationale
ARP876E has been reaffirmed to comply with the SAE five-year review policy.
Recommended Content
| Aerospace Standard | Gas Turbine Jet Exhaust Noise Prediction |
| Aerospace Standard | Physical Modeling Techniques for Jet Engine Test Cell Aerodynamics |
| Aerospace Standard | An Assessment of Planar Waves |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| TABLE 1 | Variable Density Index ω (Reference ) | |
| TABLE 2 | Pure Jet Mixing Noise Normalized Polar OASPL (dB) Value (Reference ) | |
| TABLE 3 | Adjustment Factor for Normalized Frequency | |
| TABLE 4 | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake ≤ 90 Degrees | |
| TABLE 5 | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 100 Degrees | |
| TABLE 6 | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 110 Degrees | |
| TABLE 7 | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 120 Degrees | |
| TABLE 8 | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 130 Degrees | |
| TABLE 9A | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 140 Degrees | |
| TABLE 9B | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 140 Degrees | |
| TABLE 10A | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 140 Degrees | |
| TABLE 10B | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 150 Degrees | |
| TABLE 11A | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 150 Degrees | |
| TABLE 11B | Gas Turbine Jet Exhaust Noise Prediction θ Angle to Intake = 160 Degrees | |
| TABLE 12A | Relative Velocity Exponent m(θ )v | |
| TABLE 12B | Relative Velocity Exponent m(θ ) | |
| TABLE 13 | Master Spectra H (σ) and C1(σ) | |
| TABLE 14 | Jet Noise Component Formulas | |
| TABLE 15 | Normal Adjustment (DSPL) | |
| TABLE 16 | Acoustic Excitation Adjustment (EX) | |
| TABLE 17 | Spectrum Shape Factor for Combustor Noise | |
| TABLE 18 | Farfield Directivity Index for Combustor Noise | |
| TABLE A1 | Measured and Calculated Wideband Sound Power Levels from Single-Stream Jets Under Static Conditions |
Issuing Committee
A-21 Aircraft Noise Measurement Aviation Emission Modeling
To develop and maintain relevancy of recommended practices for aircraft noise measurement and guidance for modeling of both aircraft noise and aviation emissions and to promote a unified technical approach to support the practical assessment of their impact.
Reference
| Number | Title |
|---|
* Redlines comparisons are available for those standards
listed in the Revision History that contain a radio button. A
redline comparison of the current version against a revision is
accomplished by selecting the radio button next to the standard and
then selecting 'compare'. At this time, Redline versions only exist
for some AMS standards. SAE will continue to add redline versioning
with ongoing updates to SAE MOBILUS.