UNSTRUCTURED DENSITY BASED CFD

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UNSTRUCTURED DENSITY BASED CFD METHODOLOGY FOR
GAS TURBINE COMBUSTOR APPLICATIONS
Small Business Innovation Research
CFD Research Corporation Huntsville, Alabama

• ACCOMPLISHMENTS
• Developed software package CFD-GEOM with
• Automatic curvature based unstructured grid
  generation on trimmed-NURBS geometry models
• Interactive assignment of boundary and volume
  conditions, directly on the geometry,
  configurable for various flow solvers
• Tetrahedral grid mesher for large grids
  (100K-300K cells per minute) based on Delauney
  and Advancing Front techniques
• Prismatic grid mesher for resolution of
  boundary layers based on Advancing Layers Method
• Direct interface to commercial CAD systems
• COMMERCIALIZATION
• CFD-GEOM is being marketed as a stand-alone
  product for structured and unstructured grids,
  as well as in conjunction with CFDRC flow
  solvers
• Installed at more than 250 organizations
  worldwide for a variety of CFD grid
  applications. The average license fee is
  5K.

CFD-GEOM, with a direct link to UniGraphics,
accepts true CAD data without IGES translation
and generates complete unstructured grid systems
with minimal user input

• GOVERNMENT/SCIENCE APPLICATIONS
• Standard grid generation software for the
  National Combustor Code (NCC) computational
  framework
• Several Phase III extensions by NASA and CFDRC
  with NASA contributing 375K

Lewis Research Center Advanced Subsonics
Technology 3-006
1993 Phase II, NAS3-27632, 3/98 NASA Contact -
Nan-Suey Liu Company Contact - Dr. Vincent Harrand