RCAIDE.Library.Methods.Geometry.Planform.convert_sweep

convert_sweep#

convert_sweep(wing, old_ref_chord_fraction=0.0, new_ref_chord_fraction=0.25)[source]#

This method converts the sweep of a wing planform to refer to a new chord fraction. Defaults to converting from leading-edge sweep to quarter-chord sweep.

Assumptions:

Assumes a simple trapezoidal wing shape. If the input wing object does not have a simple trapezoidal shape, this function will convert sweeps for an equivalent trapezoid having the same reference sweep, aspect ratio, and taper ratio.

Source:

Unknown

Inputs:

wing - a data dictionary with the fields:: apsect_ratio - wing aspect ratio [dimensionless] sweep - wing sweep [radians] taper - wing taper ratio [dimensionless]
old_ref_chord_fraction - a float value between 0 and 1.0 that: tells what fraction of the local chord the sweep line follows. (For example, a value of 0.25 refers to quarter-chord sweep
new_ref_chord_fraction - a float value between 0 and 1.0 that: tells what fraction of the local chord is the new reference for sweep.

Outputs:

output - a single float value, new_sweep, which is the sweep: angle referenced to the new_ref_chord_fraction.

Defaults:

Defaults to converting from leading edge sweep to quater-chord sweep.

Properties Used:: N/A

convert_sweep_segments(old_sweep, seg_a, seg_b, wing, old_ref_chord_fraction=0.0, new_ref_chord_fraction=0.25)[source]#

This method converts the sweep of a section of a wing between two segments to refer to a new chord fraction. More specifically, it converts the inboard segment’s (seg_a’s) outboard sweep. Defaults to converting from leading-edge sweep to quarter-chord sweep.