ADAPTIVE SCHEMES FOR COMPLEX SUBSONIC 3D-FLOW PROBLEMS IN ARBITRARY DOMAINS

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 6843
Amount: $489,099.00
Phase: Phase II
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Computational Mechanics Co Inc
3701 N Lamar St #201, Austin, TX, 78705
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Jon M Bass
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROJECT IS DEVOTED TO THE DEVELOPMENT OF A UNIQUE COLLECTION OF ALGORITHMS DESIGNED TO RESOLVE SOME OF THE MOST DIFFICULT PROBLEMS OF MODERN COMPUTATIONAL FLUID DYNAMICS: (1) THE ANALYSIS OF COMPLEX INCOMPRESSIBLE FLOWS IN ARBITRARY THREE-DIMENSIONAL DOMAINS; (2) THE ANALYSIS OF COMPLEX FLOW-INTERACTION PHENOMENA ASSOCIATED WITH THE MOTION OF ONE OR MORE RIGID BODIES MOVING RELATIVE TO ONE ANOTHER THROUGH A FLOW DOMAIN; (3) THE DEVELOPMENT OF QUANTIFIABLE ESTIMATES OF THE ACCURACY OF COMPUTED SOLUTIONS; AND (4) THE DEVELOPMENT OF NEAR-OPTIMAL CFD SCHEMES WHICH ATTEMPT TO PRODUCE THE BEST POSSIBLE RESULTS FOR A GIVEN, FIXED COMPUTATIONAL EFFORT. TO ACCOMPLISH THESE OBJECTIVES, FULLY-ADAPTIVE COMPUTATIONAL SCHEMES ARE TO BE DEVELOPED WHICH ARE EFFECTIVELY GEOMETRY-INDEPENDENT, WHICH EMPLOY UNSTRUCTURED MESHES, AND WHICH SIMULTANEOUSLY REFINE THE MESH SO AS TO KEEP LOCAL ERRORS WITHIN PREASSIGNED TOLERANCES. FLOW INTERACTION PROBLEMS ARE TO BE HANDLED USING NEW SLIDING MESH ALGORITHMS WHICH FULLY CONSERVE FLOW VARIABLES ACROSS MESH INTERFACES. THE RELIABILITY OF ALL CALCULATIONS IS DETERMINED THROUGH RIGOROUS A-POSTERIORI ERROR ESTIMATES WHICH ALSO PROVIDE THE BASIS FOR THE ADAPTIVE REFINEMENT SCHEMES.

* 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