Data
airfoil_self_noise

airfoil_self_noise

active ARFF CC BY 4.0 Visibility: public Uploaded 22-12-2022 by Sebastian Fischer
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Data Description 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. It 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. The task is to predict the (scaled) self noise. Attribute Description 1. *frequency* - in Hertzs 2. *angle_of_attack* - in degrees 3. *chord_length* - in meters 4. *free_stream_velocity* - in meters per second 5. *displacement_thickness* - in meters 6. *sound_pressure* - in decibels (target feature)

6 features

sound_pressure (target)numeric1456 unique values
0 missing
frequencynumeric21 unique values
0 missing
angle_of_attacknumeric27 unique values
0 missing
chord_lengthnumeric6 unique values
0 missing
free_stream_velocitynumeric4 unique values
0 missing
displacement_thicknessnumeric105 unique values
0 missing

19 properties

1503
Number of instances (rows) of the dataset.
6
Number of attributes (columns) of the dataset.
0
Number of distinct values of the target attribute (if it is nominal).
0
Number of missing values in the dataset.
0
Number of instances with at least one value missing.
6
Number of numeric attributes.
0
Number of nominal attributes.
0
Percentage of binary attributes.
0
Percentage of instances having missing values.
0
Percentage of missing values.
-1.52
Average class difference between consecutive instances.
100
Percentage of numeric attributes.
0
Number of attributes divided by the number of instances.
0
Percentage of nominal attributes.
Percentage of instances belonging to the most frequent class.
Number of instances belonging to the most frequent class.
Percentage of instances belonging to the least frequent class.
Number of instances belonging to the least frequent class.
0
Number of binary attributes.

1 tasks

0 runs - estimation_procedure: 10-fold Crossvalidation - target_feature: sound_pressure
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