Being a Gran Turismo fan, I'm wondering what are the algorithms used to compute realistic behavior for friction, aerodynamism, velocity, curves etc.
Also, are there sophisticated ways to simulate fluid mechanics in flight simulation which are trivial enough for an amateur project ?
If I wanted to build a flight simulator, neglecting the parameters which have the littlest effect (temperature, pressure, humidity, friction of the air on the wings, gravitational center of the plane, etc), are there some kind of physical formulae or programming models I should know about ?
Or does physics engine feature such kind of simulation dedicated calculation ?