Flight-SIM : DB Structure of the SIM

Previous Work Status

Missile-SIM : Performance Evaluation for Iskander / Kh-47M2 Kinzhal & ATACMS+Booster
The new topic for My page : Optimization of Supersonic aerodynamic aircraft


Flight-SIM : Trajectory & Performance Analysis for Jet Aircraft



 Compare to simple DB of Missile-SIM, Flight-SIM requires more sophisticated DB for several aspect such as weight, aircraft, trajectory options and complicated propulsion. 

 New structure of the DB is configured to consider the effect of the variables. 

1. Aircraft DB

 Weight is divided to ZFW(Zero-Fuel-Weight), Payload, and Fuel. 

 Lift, Drag, and Moment are function of Mach, AoA, and Altitude; Minimum drag change via altitude (Reynolds number) is important for Airliners. 

2. Engine DB

 Y-value of the engine DB are Thrust, Inlet effect(thrust reduction coefficient), FF(Fuel Flow), CD(Spillage Drag), CM(impact on pitching moment); these are changed by Throttle, Altitude, AoA, and Mach. 

 It would be a complex combination of those effect while format of Y-value is shared. 

3. Trajectory DB

 Trajectory input has more options than that of Missile-SIM; Take-Off, SID/STAR, Climb/Descend options should be specified to describe the airliner trajectory. 

 Step-Climb option will be made, and optimal climb/descend and cruise will be used.  

 Next time, I will made generic single-aisle airliner DB to demonstrate sample cases while I develop Flight-SIM main code.