Airfoil Self-Noise

Donated on 3/3/2014

NASA data set, obtained from a series of aerodynamic and acoustic tests of two and three-dimensional airfoil blade sections conducted in an anechoic wind tunnel.

Dataset Characteristics

Multivariate

Subject Area

Physics and Chemistry

Associated Tasks

Regression

Feature Type

Real

# Instances

1503

# Features

5

Dataset Information

Additional Information

The NASA data set comprises different size NACA 0012 airfoils at various wind tunnel speeds and angles of attack. The span of the airfoil and the observer position were the same in all of the experiments.

Has Missing Values?

No

Variables Table

Variable NameRoleTypeDescriptionUnitsMissing Values
frequencyFeatureIntegerHzno
attack-angleFeatureBinarydegno
chord-lengthFeatureContinuousmno
free-stream-velocityFeatureContinuousm/sno
suction-side-displacement-thicknessFeatureContinuousmno
scaled-sound-pressureTargetContinuousdBno

0 to 6 of 6

Additional Variable Information

This problem has the following inputs: 1. Frequency, in Hertzs. 2. Angle of attack, in degrees. 3. Chord length, in meters. 4. Free-stream velocity, in meters per second. 5. Suction side displacement thickness, in meters. The only output is: 6. Scaled sound pressure level, in decibels.

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Creators

Thomas Brooks

D. Pope

Michael Marcolini

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