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Added file to study weird bloody Arepo stuff

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glatterf42 2022-08-23 14:17:53 +02:00
parent 7ddfd8a74a
commit 5e7981517c
2 changed files with 50 additions and 2 deletions
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43
study_cosmo_params_arepo.py Normal file
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@ -0,0 +1,43 @@
import numpy as np
hubbleparam = 0.6777
omega0 = 0.307
omegab = 0.04825
Gconst = 43.0187
zstart = 127
astart = 1 / (1 + zstart)
m_gas = 0.00310523 / hubbleparam
m_highres = 0.0166524 / hubbleparam
m_lowres_1 = 0.15806103 / hubbleparam
m_lowres_2 = 1.2644882 / hubbleparam
n_gas = 174432
n_highres = 174432
n_lowres_1 = 46964
n_lowres_2 = 2135520 - n_lowres_1
boxsize = 67.77 / hubbleparam
Hsquared = (hubbleparam * 100) ** 2 * (omega0 / (astart) ** 3 + 1 - omega0)
rhocrit = 3 * (hubbleparam * 100) ** 2 / (8 * np.pi * Gconst)
print(rhocrit / hubbleparam ** 2)
#m_gas = omegab *
mass_b = m_gas * n_gas
omega_b = mass_b / (boxsize ** 3) / (3 * (hubbleparam * 100) ** 2 / (8 * np.pi * Gconst))
mass_lowres_1 = m_lowres_1 * n_lowres_1
mass_lowres_2 = m_lowres_2 * n_lowres_2
mass_lowres = mass_lowres_1 + mass_lowres_2
mass_highres = m_highres * n_highres
mass_total = mass_b + mass_highres + mass_lowres
omega_0 = mass_total / (boxsize ** 3) / (3 * (hubbleparam * 100) ** 2 / (8 * np.pi * Gconst))
print(omega_b)
print(omega_0)
print(mass_b * hubbleparam)

9
threed_pbh_zoom.py
View file

@ -41,8 +41,13 @@ def plotnp3d(pl: Plotter, data: np.ndarray, color="white"):
glrenderer.SetPass(blur_pass)
if __name__ == "__main__":
input_file = cdm_zoom_dir / f"snapshot_{int(sys.argv[1]):03d}.hdf5"
highres_coords, lowres_coords = read_g4_file(input_file, 'cdm')
if sys.argv[1] == 'cdm':
input_file = cdm_zoom_dir / f"snapshot_{int(sys.argv[2]):03d}.hdf5"
elif sys.argv[1] == 'pbh':
input_file = pbh_zoom_dir / f"snapshot_{int(sys.argv[2]):03d}.hdf5"
else:
raise ValueError('Please select pbh or cdm as zoom_type!')
highres_coords, lowres_coords = read_g4_file(input_file, sys.argv[1])
random_highres_selection = highres_coords[np.random.choice(highres_coords.shape[0], 100000, replace=False)]
random_lowres_selection = lowres_coords[np.random.choice(lowres_coords.shape[0], 100000, replace=False)]