MC1 - High-Lift Common Research Model

Test case leader: 
Behzad Reza Ahrabi (University of Wyoming)
brezaahr [at]
how5 [at]

The high-lift CRM configuration has been jointly designed by NASA and Boeing to serve as a test case for high-lift simulation. The geometry is representative for a wide-body commercial aircraft with a classical three element high lift system at the wing leading and trailing edge in a landing setting.  This version of the geometry, which consists of a body, wing, and three flaps, but no attachment hardware, was introduced for the Third High Lift Prediction Workshop (HiLPW3) and the accompanying first Geometry and Mesh Generation Workshop

Issues with the original CAD files used at the two workshops have been resolved in the CAD file provided here. Please use step file provided here for generating meshes.

As the CGNS standard is vague on the reference coordinate location of face coordinates of quartic (P4) tetrahedral elements, the CGNS files provided by Pointwise uses equidistributed nodes on the reference element.

Grids submitted so far.

Features and challenges: 
Curved geometry
Mesh generation
Subsonic flow
Turbulent flow
Reynolds Averaged Navier Stokes (RANS)
Full test case description: 
Meshes, geometry and data: