Mesh Generation and Adaption for High Reynolds Number RANS Computations

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX11CC70C
Agency Tracking Number: 090035
Amount: $600,000.00
Phase: Phase II
Program: STTR
Awards Year: 2011
Solicitation Year: 2009
Solicitation Topic Code: T8.01
Solicitation Number: N/A
Small Business Information
555 Sparkman Drive, Suite 1612, Huntsville, AL, 35816-3431
DUNS: 928516442
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Lawrence W Spradley
 Principal Investigator
 (256) 721-1769
 lawrence@researchsouthinc.com
Business Contact
 Lawrence W Spradley
Title: Business Official
Phone: (256) 721-1769
Email: lawrence@researchsouthinc.com
Research Institution
 George Mason University
 Michael Laskofski
 4400 University Drive
Fairfax, VA, 22030-4444
 () -
 Nonprofit college or university
Abstract
The innovation of our Phase II STTR program is to develop and provide to NASA automatic mesh generation software for the simulation of fluid flows using Reynolds-Averaged Navier-Stokes codes. As a result of the successful Phase I work, these new tools are now capable of generating high-quality, highly-stretched (anisotropic) meshes in boundary layer regions and transition smoothly to inviscid flow regions, even in an adaptive context. The significance is that our method has the ability to generate a boundary layer mesh while keeping intact the previous adaptation procedures from non viscous simulations. This leads to a natural coupling between boundary layer mesh generation and anisotropic mesh adaptation. All of the Phase I objectives were met and all tasks were completed successfully. The Phase II project will include improvements in surface remeshing, coding for optimal speed and increased robustness of the solvers, adding a mesh optimization module, providing a link to general CAD packages, include unsteady coupling where the boundary layer mesh refinement evolves in time, conduct further validation and verification on NASA models by running flow cases with our solver, documenting the project, and delivering the new meshing software to NASA.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government