"""
Computation of the aircraft polars
"""
# This file is part of FAST-OAD_CS23 : A framework for rapid Overall Aircraft Design
# Copyright (C) 2022 ONERA & ISAE-SUPAERO
# FAST is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from openmdao.api import Group
import fastoad.api as oad
from fastoad.module_management.constants import ModelDomain
from fastga.models.aerodynamics.components.compute_equilibrated_polar import (
ComputeEquilibratedPolar,
)
from fastga.models.aerodynamics.components.compute_non_equilibrated_polar import (
ComputeNonEquilibratedPolar,
)
[docs]@oad.RegisterOpenMDAOSystem("fastga.aerodynamics.cl_cd_polar", domain=ModelDomain.AERODYNAMICS)
class ComputePolar(Group):
[docs] def initialize(self):
self.options.declare("cg_ratio", default=-0.0, types=float)
[docs] def setup(self):
self.add_subsystem(
"equilibrated_polar_cruise",
ComputeEquilibratedPolar(low_speed_aero=False, cg_ratio=self.options["cg_ratio"]),
promotes=["*"],
)
self.add_subsystem(
"non_equilibrated_polar_cruise",
ComputeNonEquilibratedPolar(low_speed_aero=False),
promotes=["*"],
)
self.add_subsystem(
"equilibrated_polar_ls",
ComputeEquilibratedPolar(low_speed_aero=True, cg_ratio=self.options["cg_ratio"]),
promotes=["*"],
)
self.add_subsystem(
"non_equilibrated_polar_ls",
ComputeNonEquilibratedPolar(low_speed_aero=True),
promotes=["*"],
)