Two windows next to eachother are recommended in order to be able to watch both Simulink and FlightGear at the same time, as shown in the picture below. Start the simulation using the Simulink start button and watch the flight in FlightGear.You can change the aircraft's starting state by changing the initial conditions vector of the Integrator block.Run runfg_send_and_receive.bat included in /src, which contains the information needed for the connection between the model and FlightGear and starts a FligthGear version connected with the Simulink model.Open matlab and run Model.slx in order to open the Simulink model.FlightGear version v2017.3 is also required in order to watch the flight in real-time. The Aerospace Blockset Simulink library is needed, which includes many of the built-in blocks used in the model, such as the Flight Instruments blocks.
SIMULINK MONITORING FLIGHTGEAR SIMULATOR
In each loop, the simulator takes throttle and control surfaces’ deflections as inputs, calculates the aircraft's state, and finally outputs the results to Flightgear, an open source flight simulator software, for real-time visualization of the aircraft’s mission. Moreover, the model is able to take into account the effect of wind, in case of hazardous weather conditions. The simulator also calculates forces and moments produced by the engine and the landing gear. The aerodynamic forces and moments acting on the aircraft are determined using polynomial modeling, where each force and moment coefficient is expressed as a polynomial function, extracted from CFD simulations. The simulator operates by solving the airplane’s equations of motion. The model’s purpose is to get a better understanding on the aircraft’s behavior during the different phases of its mission. A dynamic flight simulation model for a Blended Wing Body (BWB) Unmanned Aerial Vehicle (UAV), including take-off, cruise, payload drop and landing, using Matlab and Simulink software.
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