Definition#
- class pynumad.objects.definition.Definition#
Bases:
objectDefinition Class
A Definition object is designed to contain the basic defining features of a blade, which can be populated manually or by reading a blade file.
- components#
Dictionary of components indexed by component name
- Type:
dict
- shearweb#
List of shearwebs. len(shearweb) == number of shearwebs. shearweb[i] gives an array defining the ith shearweb.
- Type:
list
- materials#
Dictionary of material objects indexed by material name.
- Type:
dict
- stacks#
- Type:
ndarray
- swstacks#
- Type:
array
- ispan#
Spanwise locations of interpolated output
- Type:
ndarray
- aerocenter#
Aerodynamic center of airfoil (used only by NuMAD->FAST)
- Type:
ndarray
- chord#
Chord distribution [m]
- Type:
ndarray
- chordoffset#
Chordwise offset (in addition to natural offset)
- Type:
ndarray
- degreestwist#
Twist distribution [degrees]
- Type:
ndarray
- percentthick#
Percent thickness of airfoil [%]
- Type:
ndarray
- prebend#
Blade prebend, reference axis location along x2 [m]
- Type:
ndarray
- span#
Spanwise location of distributed properties [m]
- Type:
ndarray
- sparcapoffset#
- Type:
ndarray
- sparcapwidth#
Locations of keypoints b & c, defines distance between keypoints b & c [mm]. First entry is the HP spar cap. Second entry is the LP spar cap
- Type:
ndarray
- stations#
List of station objects
- Type:
list
- sweep#
Blade sweep, reference axis location along x1 [m]
- Type:
ndarray
- teband#
Location of keypoint e
- Type:
float
- leband#
Location of keypoint a
- Type:
float
- te_type#
- Type:
list
- property natural_offset#
1 = offset by max thickness location, 0 = do not offset to max thickness
- property rotorspin#
Rotor Spin, 1 = CW rotation looking downwind, -1 = CCW rotation
- property swtwisted#
Shear Web, 0 = planar shear webs, 1 = shear webs twisted by blade twist