Unstructured Mesh Movement and Viscous Mesh Generation for CFD-Based Design Optimization

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$600,000.00
Award Year:
2006
Program:
SBIR
Phase:
Phase II
Contract:
NND06AA04C
Award Id:
72696
Agency Tracking Number:
040248
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
555 Sparkman Dr. Suite 1612, Huntsville, AL, 35816
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
928516442
Principal Investigator:
Dr. Lawrence Spradley
Principal Investigator
(256) 721-1769
lws@hiwaay.net
Business Contact:
Dr. Lawrence Spradley
Business Official
(256) 721-1769
lws@hiwaay.net
Research Institute:
n/a
Abstract
The innovations proposed are twofold: 1) a robust unstructured mesh movement method able to handle isotropic (Euler), anisotropic (viscous), mixed element (hybrid) and generalized polyhedral unstructured grids for CFD applications, particularly, CFD-based design optimization, and 2) a robust method to automatically insert high quality anisotropic prismatic (viscous boundary layer) cells into any existing CFD mesh. All objectives in Phase I were met and all tasks were completed as proposed. The methods worked very well for both 2D and 3D geometries, for tetrahedral, hexahedral, and general polyhedral element types, and for the simple viscous meshes. In Phase II, we will extend the software into a general purpose package for use by NASA, other Government agencies, and commercial customers. We will implement our 3D viscous mesh generation method including a general solution-adaptive meshing capability. We will develop the software necessary to compute sensitivity derivatives of the mesh operations. Two important software design goals for our final Phase II software are ease-of-use and convenient access to its functionality. We will develop two types of user interfaces: graphical access (for the end-user) and programming access (for integration with flow solvers). We will assemble all of the methods developed in Phase II into a single, coherent, design-oriented, product-version code with extensive focus on incorporating a parallel processing capability into the software. The ve

* information listed above is at the time of submission.

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