FLOPS based BWB implementation documentation

aviary/docs/_toc.yml

@@ -54,7 +54,8 @@ parts:
       - file: user_guide/multi_mission
       - file: user_guide/off_design_missions
       - file: user_guide/payload_range_functionality
-      - file: user_guide/features/blended_wing_body
+      - file: user_guide/features/blended_wing_body_GASP
+      - file: user_guide/features/blended_wing_body_FLOPS
     - file: user_guide/troubleshooting
 
 - caption: Examples

aviary/docs/theory_guide/gasp_based_bwb.ipynb

@@ -48,7 +48,7 @@
    "source": [
     "# GASP based BWB model implementation\n",
     "\n",
-    "Modeling of GASP based blended wing body (BWB) aircraft is similar to that of the conventional aircraft but with several key differences. This page is a record of the development. For users, please read [Blended Wing Body Modeling](../user_guide/features/blended_wing_body) in the user guide.\n",
+    "Modeling of GASP based blended wing body (BWB) aircraft is similar to that of the conventional aircraft but with several key differences. This page is a record of the development. For users, please read [Blended Wing Body Modeling](../user_guide/features/blended_wing_body_GASP) in the user guide.\n",
     "\n",
     "## BWB geometry subsystem\n",
     "\n",
@@ -456,7 +456,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -470,7 +470,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.12.3"
+   "version": "3.12.9"
   }
  },
  "nbformat": 4,

aviary/docs/user_guide/features/blended_wing_body.ipynb → aviary/docs/user_guide/features/blended_wing_body_GASP.ipynb

@@ -19,7 +19,7 @@
    "id": "267d6a8d",
    "metadata": {},
    "source": [
-    "# Blended Wing Body Modeling\n",
+    "# GASP Based Blended Wing Body Modeling\n",
     "\n",
     "The blended wing body aircraft is modeled following GASP implementation. It is important to point out the the Aviary implementation is limited to certain assumptions. To model a special model, the user must read this document carefully to see it is within the scope of the Aviary implementation.\n",
     "\n",

aviary/mission/height_energy_problem_configurator.py

@@ -394,7 +394,11 @@ def add_post_mission_systems(self, aviary_group):
             )
 
         if aviary_group.post_mission_info['include_landing']:
-            self._add_landing_systems(aviary_group)
+            if 'aircraft:wing:area' in aviary_group.aviary_inputs:
+                self._add_landing_systems(aviary_group)
+            else:
+                print('Aircraft.Wing.AREA is not given. Set include_landing = False')
+                aviary_group.post_mission_info['include_landing'] = False
 
         aviary_group.add_subsystem(
             'range_constraint',

aviary/models/aircraft/blended_wing_body/bwb_detailed_FLOPS.csv

@@ -27,11 +27,11 @@ aircraft:crew_and_payload:design:seat_pitch_economy,32,inch
 aircraft:crew_and_payload:flight_crew_mass_scaler,1.0,unitless
 aircraft:crew_and_payload:misc_cargo,0.0,lbm
 aircraft:crew_and_payload:mass_per_passenger,165.0,lbm
-aircraft:crew_and_payload:num_business_class,100,unitless
-aircraft:crew_and_payload:num_first_class,28,unitless
 aircraft:crew_and_payload:num_flight_attendants,22,unitless
 aircraft:crew_and_payload:num_flight_crew,2,unitless
 aircraft:crew_and_payload:num_galley_crew,2,unitless
+aircraft:crew_and_payload:num_business_class,100,unitless
+aircraft:crew_and_payload:num_first_class,28,unitless
 aircraft:crew_and_payload:num_passengers,468,unitless
 aircraft:crew_and_payload:num_economy_class,340,unitless
 aircraft:crew_and_payload:passenger_service_mass_scaler,1.0,unitless
@@ -98,8 +98,8 @@ aircraft:horizontal_tail:taper_ratio,0.0,unitless
 aircraft:horizontal_tail:thickness_to_chord,0.11,unitless
 aircraft:horizontal_tail:vertical_tail_fraction,0.0,unitless
 aircraft:horizontal_tail:wetted_area_scaler,1.0,unitless
-aircraft:hydraulics:system_pressure,3000.0,psi
 aircraft:hydraulics:mass_scaler,1.0,unitless
+aircraft:hydraulics:system_pressure,3000.0,psi
 aircraft:instruments:mass_scaler,1.0,unitless
 aircraft:landing_gear:main_gear_oleo_length,85.0,inch
 aircraft:landing_gear:main_gear_mass_scaler,1.0,unitless
@@ -152,7 +152,6 @@ aircraft:wing:var_sweep_mass_penalty,0.0,unitless
 aircraft:wing:wetted_area_scaler,1.0,unitless
 mission:constraints:max_mach,0.85,unitless
 mission:design:gross_mass,874099,lbm
-mission:design:lift_coefficient,-1.0,unitless
 mission:design:range,7750,NM
 mission:design:thrust_takeoff_per_eng,0.25,lbf
 mission:landing:initial_velocity,140,ft/s
@@ -164,6 +163,7 @@ mission:summary:fuel_flow_scaler,1.0,unitless
 settings:aerodynamics_method,FLOPS,unitless
 settings:equations_of_motion,height_energy,unitless
 settings:mass_method,FLOPS,unitless
+settings:verbosity,1,unitless
 
 # Unconverted Values
 AERIN.FLLDG,11000

aviary/models/aircraft/blended_wing_body/bwb_detailed_FLOPS.in

@@ -0,0 +1,190 @@
+468 passenger BWB
+
+ $OPTION
+MPRINT=1,
+IOPT=1,
+IANAL=3,
+INENG=1,
+ICOST=0,
+ITAKOF=0,
+ILAND=0,
+NOPRO=0,
+NOISE=0,
+IFITE=3,
+IXFL=1,
+IPOLP=0,
+IPLTTH=0,
+ $END
+
+ $WTIN
+DGW=874099,
+VMMO=0.85,
+DIH=3,
+FLAPR=0.333,
+GLOV=121.05,
+VARSWP=0,
+FCOMP=1,
+FAERT=0,
+FSTRT=0,
+NETAW=14,
+ETAW=0.35,0.4,0.45,0.5,0.55,0.6,0.6499,0.7,0.75,0.8,0.85,0.8999,0.95,1,
+CHD=58.03,0.4491,0.3884,0.3317,0.2886,0.2537,0.2269,0.2121,0.1983,0.1843,0.1704,0.1565,0.1426,0.1287,
+TOC=0.15,0.1132,0.0928,0.0822,0.0764,0.0742,0.0746,0.0758,0.0758,0.0756,0.0756,0.0758,0.076,0.076,
+SWL=0,0,0,0,0,0,0,42.9,42.9,42.9,42.9,42.9,42.9,42.9,0,0,0,0,0,0,
+SHT=0,
+SWPHT=0,
+ARHT=0,
+TRHT=0,
+TCHT=0,
+NVERT=0,
+NFIN=2,
+SFIN=184.89,
+ARFIN=1.952,
+TRFIN=0.464,
+SWPFIN=39.42,
+TCFIN=0.08,
+NFUSE=1,
+XL=0, ! XL=137.5 for fixed geom.
+WF=0,  ! WF=64.58
+DF=0,  ! DF=17
+XLP=0,  ! XLP=40
+XMLG=85,
+XNLG=87,
+CARBAS=0,
+NEW=0,
+NEF=3,
+THRSO=86459.2,
+WENG=22017,
+EEXP=1,
+WINL=0,
+XNAC=17.433,
+DNAC=12.608,
+NPF=28,
+NPB=100,
+NPT=340,
+NSTU=22,
+NFLCR=2,
+CARGF=0,
+FRWI=1,
+FRHT=1,
+FRVT=1,
+FRFU=1,
+FRNA=0,
+WTHR=0,
+WPMSC=0,
+WHYD=1,
+WAVONC=1,
+WFURN=1,
+ISPOWE=0,
+ $END
+
+ $FUSEIN
+ACABIN=0,
+FPITCH=61,
+NFABR=4,
+BPITCH=39,
+NBABR=4,
+TPITCH=32,
+NTABR=6,
+OSSPAN=86.75,
+ $END
+ $CONFIN
+DESRNG=7750,
+OFG=1,
+OFF=0,
+GW=874099,
+AR=7.557,0,
+THRUST=70000,1,0,0,0,0,
+SW=7621.66,1,
+TR=0.311,
+SWEEP=35.7,
+TCA=0.11,
+VCMN=0.85,
+CH=39000,
+ $END
+
+ $AERIN
+MYAERO=0,
+ITPAER=2,
+CAM=2,
+AITEK=2,
+XLLAM=0,
+E=0,
+WRATIO=0.8,
+VAPPR=140,
+FLTO=11000,
+FLLDG=11000,
+THROFF=0.25,
+ $END
+
+ $ENGDIN
+IGENEN=-1,
+EIFILE='ENGDEK',
+IDLE=1,
+MAXCR=1,
+NOX=1,
+ $END
+
+ $MISSIN
+FCDO=1,
+FCDI=1,
+ISKAL=1,
+IFLAG=2,
+MSUMPT=1,
+IRW=2,
+IATA=0,
+NPCON=1,
+TAKOTM=2,
+TAXOTM=9,
+APPRTM=4,
+TAXITM=5,
+ITTFF=1,
+NCLIMB=1,
+CLAMIN=0,
+FWF=-0.001,
+NCRUSE=3,
+IOC=1,4,4,
+CRMACH=0.85,0.6,0,
+CRALT=45000,25000,1500,
+RCIN=300,
+IVS=1,
+DEAMIN=0,
+IRS=1,
+RESTRP=0.05,
+TIMMAP=2,
+ALTRAN=200,
+NCLRES=1,
+NCRRES=2,
+HOLDTM=30,
+NCRHOL=3,
+IHOPOS=1,
+THOLD=0.1,
+NCRTH=1,
+ $END
+START
+CLIMB
+CRUISE
+DESCENT
+END
+
+ $PCONIN
+CONALT=35000,
+CONMCH=0.85,
+CONPC=1,
+ICONSG=2,
+CONLIM=300,
+ICONTP=5,
+ $END
+
+ $RERUN
+ $END
+
+ $MISSIN
+IRW=1,
+NPCON=0,
+ $END
+START
+CLIMB
+CRUISE
+DESCENT
+END

aviary/models/aircraft/blended_wing_body/bwb_detailed_FLOPS_data.py

@@ -20,7 +20,6 @@
 inputs.set_val(Aircraft.Design.SUPERSONIC_DRAG_COEFF_FACTOR, 1.0)  # FCDSUP
 inputs.set_val(Aircraft.Design.ZERO_LIFT_DRAG_COEFF_FACTOR, 1.0)  # FCDO
 inputs.set_val(Aircraft.Design.TYPE, AircraftTypes.BLENDED_WING_BODY)
-inputs.set_val(Mission.Design.LIFT_COEFFICIENT, -1.0)  # FCLDES
 inputs.set_val(Aircraft.Fuselage.SIMPLE_LAYOUT, False)
 inputs.set_val(Aircraft.BWB.DETAILED_WING_PROVIDED, True)
 
@@ -89,13 +88,13 @@
 # Fuel
 # ---------------------------
 inputs.set_val(Aircraft.Fuel.AUXILIARY_FUEL_CAPACITY, 0.0, 'lbm')  # FULAUX
-inputs.set_val(Aircraft.Fuel.DENSITY, 6.7, 'lbm/galUS')  # FULDEN
 inputs.set_val(Aircraft.Fuel.FUEL_SYSTEM_MASS_SCALER, 1.0)  # WFSYS
 inputs.set_val(Aircraft.Fuel.FUSELAGE_FUEL_CAPACITY, 0.0, 'lbm')  # FULFMX
 inputs.set_val(Aircraft.Fuel.NUM_TANKS, 7)  # NTANK
 inputs.set_val(Aircraft.Fuel.UNUSABLE_FUEL_MASS_SCALER, 1.0)  # WUF
 inputs.set_val(Aircraft.Fuel.IGNORE_FUEL_CAPACITY_CONSTRAINT, False)  # IFUFU
 inputs.set_val(Aircraft.Fuel.WING_FUEL_FRACTION, 0.68835495693, 'unitless')
+inputs.set_val(Aircraft.Fuel.DENSITY, 6.7, 'lbm/galUS')
 
 # Furnishings
 # ---------------------------
@@ -114,11 +113,11 @@
 # Horizontal Tail
 # ---------------------------
 inputs.set_val(Aircraft.HorizontalTail.AREA, 0.0, 'ft**2')  # SHT
-inputs.set_val(Aircraft.HorizontalTail.ASPECT_RATIO, 0.1)  # SHT
+inputs.set_val(Aircraft.HorizontalTail.ASPECT_RATIO, 0.1)  # ARHT
 inputs.set_val(Aircraft.HorizontalTail.TAPER_RATIO, 0.0)  # TRHT
 inputs.set_val(Aircraft.HorizontalTail.THICKNESS_TO_CHORD, 0.11)  # TCHT
 # inputs.set_val(Aircraft.HorizontalTail.VERTICAL_TAIL_FRACTION, 0.0)  # HHT
-inputs.set_val(Aircraft.HorizontalTail.MASS_SCALER, 1.0)  # SHT
+inputs.set_val(Aircraft.HorizontalTail.MASS_SCALER, 1.0)  # FRHT
 inputs.set_val(Aircraft.HorizontalTail.WETTED_AREA_SCALER, 1.0)  # SWETH
 # inputs.set_val(Aircraft.HorizontalTail.SWEEP, 0.0)  # SWPHT
 

aviary/models/aircraft/blended_wing_body/bwb_simple_FLOPS.csv

@@ -15,7 +15,7 @@ aircraft:crew_and_payload:baggage_mass_per_passenger,44.0,lbm
 aircraft:crew_and_payload:cargo_container_mass_scaler,1.0,unitless
 aircraft:crew_and_payload:design:num_business_class,100,unitless
 aircraft:crew_and_payload:design:num_first_class,28,unitless
-aircraft:crew_and_payload:design:num_passengers,468,unitless
+# aircraft:crew_and_payload:design:num_passengers,468,unitless
 aircraft:crew_and_payload:design:num_economy_class,340,unitless
 aircraft:crew_and_payload:design:num_seats_abreast_business,4,unitless
 aircraft:crew_and_payload:design:num_seats_abreast_first,4,unitless
@@ -27,12 +27,12 @@ aircraft:crew_and_payload:design:seat_pitch_economy,32,inch
 aircraft:crew_and_payload:flight_crew_mass_scaler,1.0,unitless
 aircraft:crew_and_payload:misc_cargo,0.0,lbm
 aircraft:crew_and_payload:mass_per_passenger,165.0,lbm
-aircraft:crew_and_payload:num_business_class,100,unitless
-aircraft:crew_and_payload:num_first_class,28,unitless
 aircraft:crew_and_payload:num_flight_attendants,22,unitless
 aircraft:crew_and_payload:num_flight_crew,2,unitless
 aircraft:crew_and_payload:num_galley_crew,2,unitless
-aircraft:crew_and_payload:num_passengers,468,unitless
+# aircraft:crew_and_payload:num_passengers,468,unitless
+aircraft:crew_and_payload:num_business_class,100,unitless
+aircraft:crew_and_payload:num_first_class,28,unitless
 aircraft:crew_and_payload:num_economy_class,340,unitless
 aircraft:crew_and_payload:passenger_service_mass_scaler,1.0,unitless
 aircraft:crew_and_payload:wing_cargo,0.0,lbm
@@ -100,8 +100,8 @@ aircraft:horizontal_tail:taper_ratio,0.0,unitless
 aircraft:horizontal_tail:thickness_to_chord,0.11,unitless
 aircraft:horizontal_tail:vertical_tail_fraction,0.0,unitless
 aircraft:horizontal_tail:wetted_area_scaler,1.0,unitless
-aircraft:hydraulics:system_pressure,3000.0,psi
 aircraft:hydraulics:mass_scaler,1.0,unitless
+aircraft:hydraulics:system_pressure,3000.0,psi
 aircraft:instruments:mass_scaler,1.0,unitless
 aircraft:landing_gear:main_gear_oleo_length,85.0,inch
 aircraft:landing_gear:main_gear_mass_scaler,1.0,unitless
@@ -151,7 +151,6 @@ aircraft:wing:var_sweep_mass_penalty,0.0,unitless
 aircraft:wing:wetted_area_scaler,1.0,unitless
 mission:constraints:max_mach,0.85,unitless
 mission:design:gross_mass,874099,lbm
-mission:design:lift_coefficient,-1.0,unitless
 mission:design:range,7750,NM
 mission:design:thrust_takeoff_per_eng,0.25,lbf
 mission:landing:initial_velocity,140,ft/s
@@ -163,6 +162,7 @@ mission:summary:fuel_flow_scaler,1.0,unitless
 settings:aerodynamics_method,FLOPS,unitless
 settings:equations_of_motion,height_energy,unitless
 settings:mass_method,FLOPS,unitless
+settings:verbosity,1,unitless
 
 # Unconverted Values
 AERIN.FLLDG,11000