GEOMETRIES

1st AIAA CFD High Lift Prediction Workshop

IGES Geometry Files:

The following IGES geometry files are based on measured deployed coordinates, and also include a relevant y-direction shift as detailed in the figure below. All grids are to be constructed using these particular files.

Note that there were several minor differences in the defined flap position during the course of the testing campaign (discussed in more detail in AIAA Paper 2011-862). The position used here was from 2002 Quality Assurance (QA) data. This position differs slightly from the original 1998/1999 geometry definition.

• Configuration 1 - Slat 30, Flap 25 full span:
  • Body-slat-main-flap-1 Geometry (IGES)
  ***Updated 10-22-09***
  • Note that a very small "leakage" or "gap" of order 10e-3 units was discovered in the IGES file in the slat cove near the wingtip, inside the cove kink. Most people have not encountered grid generation problems because of this, so corrective action has not been taken. Nonetheless, the user should be aware in case problems are experienced.
  • Bracket-1 Geometry (IGES) (optional)
• Configuration 8 - Slat 30, Flap 20 full span:
  • Flap-8 Geometry (IGES) (slat, main, & body remain unchanged from Config 1)

(The above IGES geometry files have been read successfully in the following third-party CAD packages and grid generation tools: CATIA V5, VGRID/Gridtool V4.0, ICEMCFD V11.0, Star-CCM+ V4.02, and Gridgen V15.13.)

 

ProE Geometry Files:

The geometry files are also available as ProE files (Configuration 1 only). Note, however, that the brackets are surfaces, not solid models.

• Configuration 1 - Slat 30, Flap 25 full span:
  • Body-slat-main-flap-1 Geometry (ProE)
  • Bracket-1 Geometry (ProE) (optional)

Note: HiLiftPW participants are required to run on one of the provided grids if possible. Participants are also welcome to create their own grids, but they must be uploaded to the HiLiftPW Committee.

Geometric Reference Parameters:

Download pdf version of the above cruise configuration diagram: cruisediagram-09June09.pdf

Data file with approximate local chord (max length line) for each element, based on model without standoffs: TrapWing_chords.dat

Description of Transformations between Stowed and Un-Stowed Coordinates (text file, updated 6-22-2011)

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Page Curator and NASA Official Responsible for Content
Christopher Rumsey  

Last Updated
September 6, 2011

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