"""Computation of aerodynamic polar in cruise conditions."""
# This file is part of FAST-OAD_CS25
# Copyright (C) 2023 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/>.
import fastoad.api as oad
import openmdao.api as om
from fastoad.module_management.constants import ModelDomain
from .constants import (
SERVICE_ALPHA,
SERVICE_CD0,
SERVICE_CD_COMPRESSIBILITY,
SERVICE_CD_TRIM,
SERVICE_CL_ALPHA,
SERVICE_INDUCED_DRAG_COEFFICIENT,
SERVICE_INITIALIZE_CL,
SERVICE_OSWALD_COEFFICIENT,
SERVICE_POLAR,
SERVICE_REYNOLDS_COEFFICIENT,
)
[docs]
@oad.RegisterOpenMDAOSystem(
"fastoad.aerodynamics.highspeed.legacy", domain=ModelDomain.AERODYNAMICS
)
class AerodynamicsHighSpeed(om.Group):
"""
Computes aerodynamic polar of the aircraft in cruise conditions.
Drag contributions of each part of the aircraft are computed though analytical
models.
"""
[docs]
def setup(self):
self.add_subsystem(
"compute_oswald_coeff",
oad.RegisterSubmodel.get_submodel(SERVICE_OSWALD_COEFFICIENT),
promotes=["*"],
)
self.add_subsystem(
"compute_induced_drag_coeff",
oad.RegisterSubmodel.get_submodel(SERVICE_INDUCED_DRAG_COEFFICIENT),
promotes=["*"],
)
self.add_subsystem(
"comp_re",
oad.RegisterSubmodel.get_submodel(SERVICE_REYNOLDS_COEFFICIENT),
promotes=["*"],
)
self.add_subsystem(
"initialize_cl",
oad.RegisterSubmodel.get_submodel(SERVICE_INITIALIZE_CL),
promotes=["*"],
)
self.add_subsystem(
"cd0_wing", oad.RegisterSubmodel.get_submodel(SERVICE_CD0), promotes=["*"]
)
self.add_subsystem(
"cd_comp", oad.RegisterSubmodel.get_submodel(SERVICE_CD_COMPRESSIBILITY), promotes=["*"]
)
self.add_subsystem(
"cd_trim", oad.RegisterSubmodel.get_submodel(SERVICE_CD_TRIM), promotes=["*"]
)
self.add_subsystem(
"get_polar", oad.RegisterSubmodel.get_submodel(SERVICE_POLAR), promotes=["*"]
)
self.add_subsystem(
"compute_AoA", oad.RegisterSubmodel.get_submodel(SERVICE_CL_ALPHA), promotes=["*"]
)
self.add_subsystem(
"compute_alpha",
oad.RegisterSubmodel.get_submodel(SERVICE_ALPHA),
promotes=["*"],
)