diff options
| -rw-r--r-- | creator.py | 32 |
1 files changed, 9 insertions, 23 deletions
@@ -99,7 +99,7 @@ class Coordinates: # This line required to reset behavior of sys.stdout sys.stdout = sys.__stdout__ print('Successfully wrote to file {}'.format(full_path)) - except: + except IOError: print('Unable to write {} to specified directory.\n' .format(file_name), 'Was the full path passed to the function?') @@ -150,9 +150,8 @@ class Airfoil(Coordinates): def get_camber(x): """ - Returns 1 camber y-coordinate from 1 'x' along the airfoil chord. + Returns camber y-coordinate from 1 'x' along the airfoil chord. """ - x_c = x y_c = float() if 0 <= x < p_c: y_c = (m / (p**2)) * (2 * p * (x / self.chord) @@ -161,7 +160,7 @@ class Airfoil(Coordinates): y_c = (m / ((1 - p)**2)) * ((1 - 2 * p) + 2 * p * (x / self.chord) - (x / self.chord)**2) - return (x_c, y_c * self.chord) + return (y_c * self.chord) def get_thickness(x): """ @@ -185,25 +184,13 @@ class Airfoil(Coordinates): return theta def get_upper_coordinates(x): - x_u = float() - z_u = float() - if 0 <= x < self.chord: - x_u = x - get_thickness(x) * sin(get_theta(x)) - z_u = get_camber(x)[1] + get_thickness(x) * cos(get_theta(x)) - elif x == self.chord: - x_u = x - get_thickness(x) * sin(get_theta(x)) - z_u = 0 # Make upper curve finish at y = 0 + x_u = x - get_thickness(x) * sin(get_theta(x)) + z_u = get_camber(x) + get_thickness(x) * cos(get_theta(x)) return (x_u, z_u) def get_lower_coordinates(x): - x_l = float() - z_l = float() - if 0 <= x < self.chord: - x_l = (x + get_thickness(x) * sin(get_theta(x))) - z_l = (get_camber(x)[1] - get_thickness(x) * cos(get_theta(x))) - elif x == self.chord: - x_l = (x + get_thickness(x) * sin(get_theta(x))) - z_l = 0 # Make lower curve finish at y = 0 + x_l = x + get_thickness(x) * sin(get_theta(x)) + z_l = get_camber(x) - get_thickness(x) * cos(get_theta(x)) return (x_l, z_l) # Generate our airfoil geometry from previous sub-functions. @@ -212,11 +199,10 @@ class Airfoil(Coordinates): # Densify x-coordinates 10 times for first 10% of the chord length x_chord = [x / 10 for x in range(x_chord_10_percent * 10)] x_chord.extend([x for x in range(x_chord_10_percent, self.chord + 1)]) - print(x_chord) for x in x_chord: - self.x_c.append(get_camber(x)[0]) - self.y_c.append(get_camber(x)[1]) + self.x_c.append(x) + self.y_c.append(get_camber(x)) self.x_u.append(get_upper_coordinates(x)[0]) self.z_u.append(get_upper_coordinates(x)[1]) self.x_l.append(get_lower_coordinates(x)[0]) |