Tibeuleu/KozaiLidov
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Branch with adimensionned variables

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Thibault Barnouin
2021-11-26 14:19:54 +01:00
parent 6da8a27606
commit e51f41c6a7
8 changed files with 19 additions and 18 deletions
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14
main.py
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@@ -11,8 +11,8 @@ from lib.units import *
def main():
#initialisation
m = np.array([1., 1., 1e-5])*Ms # Masses in Solar mass
a = np.array([1., 1., 5.])*au # Semi-major axis in astronomical units
m = np.array([1., 1., 1e-5])*Ms/Ms # Masses in Solar mass
a = np.array([1., 1., 5.])*au/au # Semi-major axis in astronomical units
e = np.array([0., 0., 1./4.]) # Eccentricity
psi = np.array([0., 0., 0.])*np.pi/180. # Inclination of the orbital plane in degrees
@@ -21,13 +21,13 @@ def main():
x3 = np.array([np.cos(psi[2]), 0., np.sin(psi[2])])*a[2]
q = np.array([x1, x2, x3])
v1 = np.array([np.sqrt(G*m[1]**2/((m[0]+m[1])*np.sqrt(np.sum((q[0]-q[1])**2)))), 0., 0.])
v2 = np.array([-np.sqrt(G*m[0]**2/((m[0]+m[1])*np.sqrt(np.sum((q[0]-q[1])**2)))), 0., 0.])
v3 = np.array([0., np.sqrt(G*(m[0]+m[1])*(2./np.sqrt(np.sum(q[2]**2))-1./a[2])), 0.])
v1 = np.array([np.sqrt(Ga*m[1]**2/((m[0]+m[1])*np.sqrt(np.sum((q[0]-q[1])**2)))), 0., 0.])
v2 = np.array([-np.sqrt(Ga*m[0]**2/((m[0]+m[1])*np.sqrt(np.sum((q[0]-q[1])**2)))), 0., 0.])
v3 = np.array([0., np.sqrt(Ga*(m[0]+m[1])*(2./np.sqrt(np.sum(q[2]**2))-1./a[2])), 0.])
v = np.array([v1, v2, v3])
#integration parameters
duration, step = 100*yr, np.array([1./(365.25*2.), 1./(365.25*1.), 5./(365.25*1.)])*yr #integration time and step in years
duration, step = 100*yr/yr, np.array([1./(365.25*2.), 1./(365.25*1.), 5./(365.25*1.)])*yr/yr #integration time and step in years
step = np.sort(step)[::-1]
integrator = "leapfrog"
n_bodies = 2
@@ -52,7 +52,7 @@ def main():
parameters = [duration, step, dyn_syst, integrator]
display_parameters(E, L, sma, ecc, parameters=parameters, savename=savename)
print(sma/au)
print(sma,ecc)
return 0
if __name__ == '__main__':