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updated model-files and user-input-file

This commit is contained in:
Marcel Christian Frommelt 2021-02-15 21:47:42 +09:00
parent d107aaae2c
commit c87e08af99
4 changed files with 15 additions and 15 deletions
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2
input/natural_constants.py
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@ -1,4 +1,4 @@
g = 9.81 # local gravitational acceleration in [m/s^2]
g = 9.80665 #9.81 # local gravitational acceleration in [m/s^2]
c_v = 3115.89 # [J/(kg * K)]
R_air = 287.1 # Specific Gas Constant Dry Air in [J/(kg * K)]
R_gas = 2077.1 # Specific Gas Constant Helium in [J/(kg * K)]

20
input/user_input.py
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@ -1,8 +1,8 @@
# BALLOON
m_pl = 417.57 # payload mass in [kg]
m_film = 7.74 # mass balloon film in [kg]
m_gas = 5 * 74.98539754298822 # 1.60391061452 # lifting gas mass in [kg]
V_design = 334705 # maximum fillable balloon volume in [m^3]
m_pl = 600.0 # payload mass in [kg]
m_film = 400.0 # mass balloon film in [kg]
m_gas = 161.0 # lifting gas mass in [kg]
V_design = 88000 # maximum fillable balloon volume in [m^3]
L_goreDesign = 1.914 * V_design ** (1/3)
# THERMO-OPTICAL
@ -27,9 +27,9 @@ c_virt = 0.37
# SIMULATION
t_end = 10000 #5000 # maximum simulation time in [s]
dt = 0.01 #0.01 # simulation time step in [s]
start_height = 0.0 # start altitude in [m]
start_lat = 39.9161 # start latitude in [deg]
start_lon = 9.6889 # start longitude in [deg]
start_utc = '2006-01-16 08:00:00.000' # start date and time in UTC
p_0 = 101325 # sea-level pressure
dt = 0.1 #0.01 #0.01 # simulation time step in [s]
start_height = 365.10 # start altitude in [m]
start_lat = 67.889235 # start latitude in [deg]
start_lon = 21.082948 # start longitude in [deg]
start_utc = '2016-07-11 17:09:50.000' # start date and time in UTC
p_0 = 101325 # sea-level pressure in [Pa]

4
models/drag.py
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@ -2,5 +2,5 @@ import numpy as np
c_d = 0.47 # drag coefficient balloon (spherical) [-]
def drag(c_d, rho_air, d_b, v_z):
return 0.125 * np.pi * c_d * rho_air * (d_b * v_z) ** 2
def drag(c_d, rho_air, d_b, v):
return 0.125 * np.pi * c_d * rho_air * (d_b * v) ** 2

4
models/sun.py
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@ -1,10 +1,10 @@
import astropy.units as u
import astropy.units as unit
import numpy as np
from astropy.coordinates import EarthLocation, AltAz
from astropy.coordinates import get_sun
def sun_angles_astropy(lat, lon, h, utc):
loc = EarthLocation(lat=lat*u.deg, lon=lon*u.deg, height=h*u.m)
loc = EarthLocation(lat=lat*unit.deg, lon=lon*unit.deg, height=h*unit.m)
ref = AltAz(obstime=utc, location=loc)
sun_pos = get_sun(utc).transform_to(ref)