2021-01-11 10:53:13 +01:00
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# BALLOON
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2021-02-15 21:47:42 +09:00
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m_pl = 600.0 # payload mass in [kg]
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m_film = 400.0 # mass balloon film in [kg]
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m_gas = 161.0 # lifting gas mass in [kg]
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V_design = 88000 # maximum fillable balloon volume in [m^3]
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2021-01-25 20:25:41 +09:00
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L_goreDesign = 1.914 * V_design ** (1/3)
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2021-01-11 10:53:13 +01:00
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# THERMO-OPTICAL
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alpha_VIS = 0.024
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r_VIS = 0.06
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tau_VIS = 0.916
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epsilon = 0.1
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alpha_IR = 0.1
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tau_IR = 0.86
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r_IR = 0.04
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c_f = 2092 # [J/(kg*K)]
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epsilon_ground = 0.9
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2021-01-25 20:25:41 +09:00
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Albedo = 0.1
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2021-01-11 10:53:13 +01:00
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T_ground = 273.15
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# DRAG
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c_d = 0.47 # drag coefficient balloon (spherical) [-]
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2021-01-25 20:25:41 +09:00
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c_virt = 0.37
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2021-01-11 10:53:13 +01:00
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# SIMULATION
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2021-01-25 20:25:41 +09:00
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t_end = 10000 #5000 # maximum simulation time in [s]
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2021-02-15 21:47:42 +09:00
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dt = 0.1 #0.01 #0.01 # simulation time step in [s]
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start_height = 365.10 # start altitude in [m]
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start_lat = 67.889235 # start latitude in [deg]
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start_lon = 21.082948 # start longitude in [deg]
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start_utc = '2016-07-11 17:09:50.000' # start date and time in UTC
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p_0 = 101325 # sea-level pressure in [Pa]
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