> Hmm, so how would JSBSim model low speed control reversals like this? > Could it be done in a way that would also be able to model transonic > control reversals that are caused by shockwaves near the control surface > hinge? > > Josh
I've got several ideas in mind. One is that the wing could be split up into sections for tip, aileron, interspan, flap, root. Alpha and spanwise velocity would be calculated for each section. Then, lateral effects due to the wing would be calculated. I think that would be rolling moment due to wing effects, and yawing moment due to wing effects. It would incorporate rolling moment due to aileron deflection, roll moment damping, roll due to yaw rate. Maybe other things as well. On the yaw side: yaw moment due to aileron deflection, yaw damping, and yaw moment due to roll rate. Another idea would be to just add additional incremental aerodynamic effects based on carefully calculated or "devised" functions or tables, etc., instead of the "whole" approach given above. Another approach might be to detect a stall at a specific wing location based on some given parameters, then manufacture an incremental aerodynamic effect based on that. There are a lot of ways to do this, but it should be done so as to not break the existing paradigm, but instead to fit within it. Jon _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
