Polaire : C_z = f( C_x )

Point \; A \; : \; portance \; nulle

Point \; B \; : \; trainée \;  C_x \; minimum

Point \; C \; : \; finesse \; \frac{C_z}{C_x} \; maximum

Point \; D \; : \; portance \; C_z \; maximum

Point \; E \;: \; décrochage

vent \; relatif

Déplacer \; le \; pont \; M \; pour \; faire \; varier \; l'incidence \; α

Décrochage \;  !!!

trainée

portance

E = (0.1336972574955941, 1.3408287825248928)
C_1 = (0.08168854497354684, 1.4612913588178578)
B_1 = (-0.007981649029982898, 0.6325088339222595)
A_1 = (0.02474797178130546, -0.20109219402505715)
Q(t) = ((1 - t)^(3) * y(A_1)) + (((3 * (1 - t^(2))) * t) * y(B_1)) + (((3 * (1 - t)) * t^(2)) * y(C_1)) + (t^(3) * y(E))
P(t) = ((1 - t)^(3) * x(A_1)) + (((3 * (1 - t^(2))) * t) * x(B_1)) + (((3 * (1 - t)) * t^(2)) * x(C_1)) + (t^(3) * x(E))
a = CurveCartesian(P(t), Q(t), t, 0, 1)
M = Point(a)
e: y(M) < -0.198
test = If(¬e, Length[a, A_1, M], 0)
b = Length(a, A_1, M)
c: (10 * test) - 4
E_1 = (0.5, 1.68)
F = (1, 1)
G = (4, 1.3)
H = (1, 2)
poly1, f, h, g = Polygon(H, G, F)
I = Centroid(poly1)
image1' = Rotate(image1, (-((c - 3)°)), I)
i: y = y(I)
j: y = y(I) - (tan(c°) * (x - x(I)))
J = Point(i)
K = Point(j)
k = Ray(I, J)
l = Ray(I, K)
α = Angle(K, I, J)
L = Midpoint(J, K)
m = Tangent(M, a)
C = Point(a)
O, R, A = Intersect(xAxis, a)
D = Point(a)
U = Intersect(m, yAxis)
n = If(-0.01 < y(U) < 0.01, m)
B = Point(a)
p = OrthogonalLine(B, xAxis)
W = Intersect(p, xAxis)
q = Segment(B, W)
r = If(0.28 < y(M) < 0.32, q)
X: x(M)
Y: y(M)
texte3: "C_x=" + (LaTeX[X]) + ""
texte4: "C_z=" + (LaTeX[Y]) + ""
arrondi: round(c)
texte1: "α = " + (LaTeX[arrondi]) + "°"
texte2_1: "α=" + (LaTeX[arrondi]) + "°"
d = Div(Y, X)
texte5: "\frac{C_z}{C_x}≈" + (LaTeX[d]) + ""
s = OrthogonalLine(M, yAxis)
t = OrthogonalLine(M, xAxis)
N = Intersect(s, yAxis)
S = Intersect(t, xAxis)
f_1 = Segment(N, M)
g_1 = Segment(M, S)
T = (-2.447869681032709, 2.9128078683150096)
V = (0.010978758281540347, 2.9128078683150096)
u = Vector(T, V)
Z = (-10.280667987159337, 2.2571149511645405)
D_1 = (-5.097961887849189, 2.24345468205724)
F_1 = (-8, 1)
G_1 = (11, 1)
h_1 = Segment(F_1, G_1)
H_1 = Point(h_1)
v = Vector(F_1, H_1)
image2' = Translate(image2, v)
w: (0, (2 * y(M)))
Portance: I + w
portance = Vector(I, Portance)
Trainee: (2 + (10 * x(M)), 1.433)
u_1 = Vector(I, Trainee)