sin390 / AirfoilReader

A tool to read the airfoil data file and return the results as a dict objective containing the lists of point coordinates.

AirfoilReader

A python module to handle the airfoil data file. It can parse the statement header, the points in the upper and lower wing.

Two kinds of format in airfoil '.dat' file are considered, those are:

• i. seperate type, it looks like:

    # Some statement words (header part)
    #
    #     0.000  0.000 (upper wing part)
    #     0.010  0.005
    #      ...   ...
    #     1.000  0.001
    #                  (blank here)
    #     0.000  0.000 (lower wing part)
    #     0.010 -0.003
    #      ...    ...
    #     1.000 -0.001
  

• ii. merged type, it looks like:

    # Some statement words (header part)
    #
    #     1.000  0.001 
    #     0.990  0.005
    #      ...   ...    (No blank)
    #     0.010  0.012
    #     0.000  0.000
    #     0.010 -0.013
    #      ...    ...
    #     0.995  0.001
    #     1.000 -0.001
  

A airfoil data file in either of above two formats could be handled by this module.

For the example, please refer to Quick start.

The test files in /refAirfoils were downloaded from UIUC Airfoil Coordinates Database. (https://m-selig.ae.illinois.edu/ads/coord_database.html)

Install

pip install git+https://github.com/sin390/AirfoilReader.git

Quick start

As the demo.py file shown, one can handle an airfoil file like this...

import airfoilreader as ar
import os
import matplotlib.pyplot as plt

file = f'{os.path.dirname(__file__)}/refAirfoils/hs1606.dat'

reader = ar.AirfoilReader(file, outputpath="./")
reader.read()
resultdict = reader.getresults()

plt.plot(resultdict['upper_x'],resultdict['upper_y'],'r')
plt.plot(resultdict['lower_x'],resultdict['lower_y'],'b')
plt.axis('equal')
plt.show()

reader.output(format='merged')