We are possibly facing the task of modeling a flexible droop nose leading edge device on a wing, e.g. see this presentation.
I would define the problem as modeling a shape-variable nose shape in front of the wingbox front-most-spar. This droop nose may possibly have different deployment settings, similar to the path of an explicit moveable part.
In my opinion the task can be generalized to a
shape-variable control surface
based on the airfoil shape
on the leading or trailing edge
with a discrete span-wise beginning and end
outside of the wing-box (so in front of the front-most and behind the rear-most spar)
with an internal kinematic (which is out-of-scope for the structural modeling I am facing, but should be integrated in the thought-process I guess)
with a gap-free suction side but possibly gaps on the pressure side of the airfoil (gaps may be neglected, see image
Having a look at the current CPACS definition of leading edge devices I don't see a possibility to define this problem since the current implementation, equivalent to trailingEdgeDevice element, expects an explicit moveable-body that is connected to the wing or the track with some kind of kinematic but otherwise detached from the wing-box body.
I do see some possible solution:
Define a discrete flexible control surface element
Define the shape
of the overall wing for different deployment settings as separate wing airfoils
or explicitely as a tangent continuous spline/nurb
We are possibly facing the task of modeling a flexible droop nose leading edge device on a wing, e.g. see this presentation.
I would define the problem as modeling a shape-variable nose shape in front of the wingbox front-most-spar. This droop nose may possibly have different deployment settings, similar to the path of an explicit moveable part.
In my opinion the task can be generalized to a
Having a look at the current CPACS definition of leading edge devices I don't see a possibility to define this problem since the current implementation, equivalent to trailingEdgeDevice element, expects an explicit moveable-body that is connected to the wing or the track with some kind of kinematic but otherwise detached from the wing-box body.
I do see some possible solution: