def test_solver():
dt = 0.1; T = 100; m = 0.43; g = 9.81;
rho = 1000; mu = 0.00089; r = 11; CD = 0.45
plot = False
v, t = mod.solver(dt, T, m, g, rho, mu, r, CD, False)
t_e = np.linspace(0, 100, 1001)
v_e = mod.exact_solution_neg_drag(t_e, m, g, rho, mu, r)
if (plot):
import matplotlib.pyplot as plt
plt.plot(t, v, 'b--o')
plt.plot(t_e, v_e, 'b-')
plt.hold("on")
plt.xlabel("t")
plt.ylabel("v")
plt.show()
difference = abs(v_e - v).max()
tol = 1.0
success = difference <= tol
assert success == True
def test_solver():
dt = 0.1
T = 100
m = 0.43
g = 9.81
rho = 1000
mu = 0.00089
r = 11
CD = 0.45
plot = False
v, t = mod.solver(dt, T, m, g, rho, mu, r, CD, False)
t_e = np.linspace(0, 100, 1001)
v_e = mod.exact_solution_neg_drag(t_e, m, g, rho, mu, r)
if (plot):
import matplotlib.pyplot as plt
plt.plot(t, v, 'b--o')
plt.plot(t_e, v_e, 'b-')
plt.hold("on")
plt.xlabel("t")
plt.ylabel("v")
plt.show()
difference = abs(v_e - v).max()
tol = 1.0
success = difference <= tol
assert success == True
def solve(self): from vertical_motion_mod import solver self.v, self.t = solver(self.dt, self.T, self.problem.m, self.problem.g, self.problem.rho, self.problem.mu, self.problem.r, self.problem.CD)
def solve(self):
from vertical_motion_mod import solver
self.v, self.t = solver(self.dt, self.T, self.problem.m,
self.problem.g, self.problem.rho,
self.problem.mu, self.problem.r,
self.problem.CD)