TEST CASES

1st AIAA CFD High Lift Prediction Workshop

Image of an unstructured trap wing grid

Image of a trap wing CFD solution

The Official Test Cases for HiLiftPW-1 are defined below. Please check periodically for updates, and/or register with hiliftpw@gmail.com to be notified directly of any changes.

For the required test cases, participants are asked to run on at least one supplied series of grids (if possible).

Case 1 (REQUIRED) - Grid Convergence Study

Trap Wing "Config 1" - Slat 30, Flap 25 (full span)

Flow solutions on a series of increasingly refined grids are required to assess grid convergence. If desired, participants can also run on independently-generated grids (built to specifications described in the Gridding Guidelines found on the Grids Page). Flow solutions on the coarse, medium, and fine mesh are required. An additional extra-fine mesh flow solution is optional.

Mach = 0.2
Angles-of-attack to be computed (deg) = 13 and 28
Reynolds number = 4.3 million based on mean aerodynamic chord (MAC)
Reference Temperature = 520 R

Case 2 (REQUIRED) - Flap Deflection Prediction Study

Medium Mesh from Grid Convergence Study

Trap Wing "Config 1" - Slat 30, Flap 25
Trap Wing "Config 8" - Slat 30, Flap 20

Mach = 0.2
Angles-of-attack to be computed (deg) = 6, 13, 21, 28, 32, 34, and 37
Reynolds number = 4.3 million based on MAC
Reference Temperature = 520 R

Case 3 (OPTIONAL) - Flap and Slat Support Effects Study

Trap Wing "Config 1" - Slat 30, Flap 25 with flap and slat bracket geometry modeled (nominally using medium mesh grid system)

Mach = 0.2
Angles-of-attack to be computed (deg) = 13 and 28
Reynolds number = 4.3 million based on MAC
Reference Temperature = 520 R

NOTES:

All simulations are "free air"; no wind tunnel walls or model support systems are to be included.
Boundary layer is to be modeled as fully turbulent.
See Geometries Page for information about MAC and other CFD reference parameters.
See Experimental Data Page for information about available associated experimental data.

The above summary of test cases is also available for download as a PDF file: OfficialTestCases-HiLiftPW1-12August09.pdf

Although this results for this workshop are to be modeled as fully turbulent, information on transition from the experiment can be found in: McGinley et al, AIAA Paper 2005-5148, June 2005.

Return to: High Lift Prediction Workshop Home Page

Page Curator and NASA Official Responsible for Content
Li Wang

Last Updated
July 28, 2011

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