From 3236b603f5340f5eda8bef59426ee9077f5eeb17 Mon Sep 17 00:00:00 2001
From: mfrommelt <lrt86919@stud.uni-stuttgart.de>
Date: Mon, 11 Jan 2021 10:53:13 +0100
Subject: [PATCH] =?UTF-8?q?Dateien=20hochladen=20nach=20=E2=80=9Einput?=
 =?UTF-8?q?=E2=80=9C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

data input (by user):

-geometrical data balloon
-mass properties
-thermo-optical properties
-start date, time and location
---
 input/atmosphere.nc        | Bin 0 -> 1024 bytes
 input/natural_constants.py |   7 +++++++
 input/user_input.py        |  34 ++++++++++++++++++++++++++++++++++
 3 files changed, 41 insertions(+)
 create mode 100644 input/atmosphere.nc
 create mode 100644 input/natural_constants.py
 create mode 100644 input/user_input.py

diff --git a/input/atmosphere.nc b/input/atmosphere.nc
new file mode 100644
index 0000000000000000000000000000000000000000..06d7405020018ddf3cacee90fd4af10487da3d20
GIT binary patch
literal 1024
ScmZQz7zLvtFd70QH3R?z00031

literal 0
HcmV?d00001

diff --git a/input/natural_constants.py b/input/natural_constants.py
new file mode 100644
index 0000000..28be44a
--- /dev/null
+++ b/input/natural_constants.py
@@ -0,0 +1,7 @@
+g = 9.81        # local gravitational acceleration in [m/s^2]
+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)]
+R_E = 6378000   # Earth Radius in [m]
+e = 0.016708    # Eccentricity of Earth's Orbit
+sigma = 5.670374419 * 10 ** -8  # Stefan-Boltzmann-Constant
+gamma = 1.4
\ No newline at end of file
diff --git a/input/user_input.py b/input/user_input.py
new file mode 100644
index 0000000..1fed52f
--- /dev/null
+++ b/input/user_input.py
@@ -0,0 +1,34 @@
+# BALLOON
+m_pl = 10.0  # payload mass in [kg]
+m_film = 1.0  # mass balloon film in [kg]
+m_gas = 1.7645  # 1.60391061452  # lifting gas mass in [kg]
+V_max = 9999999  # maximum fillable balloon volume in [m^3]
+
+# THERMO-OPTICAL
+alpha_VIS = 0.024
+r_VIS = 0.06
+tau_VIS = 0.916
+epsilon = 0.1
+alpha_IR = 0.1
+tau_IR = 0.86
+r_IR = 0.04
+
+c_f = 2092  # [J/(kg*K)]
+
+epsilon_ground = 0.9
+Albedo = 0.2
+T_ground = 273.15
+
+# DRAG
+c_d = 0.47       # drag coefficient balloon (spherical) [-]
+
+c_virt = 0
+
+# SIMULATION
+t_end = 10000                          # maximum simulation time in [s]
+dt = 0.1                              # simulation time step in [s]
+start_height = 0.0                     # start altitude in [m]
+start_lat = 0.0                       # start latitude in [deg]
+start_lon = 0.0                        # start longitude in [deg]
+start_utc = '2020-12-13 12:00:00.000'  # start date and time in UTC
+p_0 = 1013.25  # sea-level pressure