PSP Rotor Description

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Blade Number..................................................... 4

Radius......................................................... 66.5 in

Solidity....…………...............................………. 0.1033

Reference Chord.........................................5.45 in

Tip Chord.................................................... 3.27 in

Tip Sweep................................... 30 deg at 95% R

Flap Hinge..................................................... 3.0 in

Rotor Speed...........................................1150 RPM

Tip Mach Number.......................................... 0.58

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Conditions

Calculations should be performed for a tip Mach number of 0.58. To allow for direct comparison to experimental data and with other's results it is recommended that the investigators cover the range of collective angles from 6 to 14 degrees.

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Structural Properties

A complete set of as designed 2D sectional structural properties are provided in Table 2 of the PSP Rotor Definition document located on this webpage. 

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References

Wong, O.D., Noonan, K.W., Watkins, A. N., Jenkins, L.N., Yao, C-S, “Non-Intrusive Measurements of a Four-Bladed Rotor in Hover – A First Look,” American Helicopter Society Aeromechanics Specialists’ Conference, San Francisco, CA, January 20-22, 2010.

Overmeyer, A. and Martin, P. B., “The Effect of Boundary Layer Transition on Rotor Hover Performance at Model Scale,” AIAA 2017-1872, 55th AIAA Aerospace Sciences Meeting, AIAA SciTech Forum, Grapevine, TX, January 9-13, 2017.

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Surface Geometry

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Surface geometry of the PSP rotor blades are available on the FileShare page in several formats.

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**** STRUCTURED GRID ***

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File: blade_structured.plot3d
Format: unformatted, double precision, multi-grid, no iblank, plot3d

 

There are three overset surface grids:

(1) main blade grid
(2) root cap grid
(3) tip cap grid

 

The volume grid is also available upon request.

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**** UNSTRUCTURED GRID ***

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The unstructured surface grid is provided in three

formats:

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(1) File: blade_unstructured.nas
     Format: formatted (ASCII), NASTRAN

(2) File: blade_unstructured.r8.ugrid
     Format: Unformatted, double precision,

     UGRID

(3) File: blade_unstructured.fvuns
     Format: Unformatted, double precision, Fieldview

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