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

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
6843
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
6843
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Computational Mechan
7800 Shoal Creek Austin, TX 78757 0102
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1989
Title: ADAPTIVE SCHEMES FOR COMPLEX SUBSONIC 3D-FLOW PROBLEMS IN ARBITRARY DOMAINS
Agency: NASA
Contract: N/A
Award Amount: $489,099.00
 

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.

Principal Investigator:

Dr Jon M Bass

Business Contact:

Small Business Information at Submission:

Computational Mechanics Co Inc
3701 N Lamar St #201 Austin, TX 78705

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No