AN ARBITRARY GRID CFD ALGORITHM FOR CONFIGURATION AERODYNAMICS

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 2769
Amount: $200,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1987
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Computational Mechanics
3601a Chapman Hwy, Knoxville, TN, 37920
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr A J Baker
 Principal Investigator
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROPOSAL DESCRIBES A PROJECT TO DEVELOP AND EXAMINE A CFD NUMERICAL SOLUTION ALGORITHM FOR THE THREE-DIMENSIONAL EULER/NAVIER-STOKES EQUATIONS THAT DOES NOT RELY ON A WELL-STRUCTURED, BODY-FITTED COORDINATE SYSTEM FOR ROBUSTNESS. THE SPECIFIC APPLICATION IS FOR REALISTIC CONFIGURATION AERODYNAMICS ANALYSIS OF HIGH SPEED MIXED SUPERSONIC FLOWS AT LARGE REYNOLDS NUMBER. A THEORETICAL ANALYSIS FRAMEWORK IS PRESENTED THAT PERMITS ENFORCEMENT OF PROPER ZONES OF DEPENDENCE MEASURABLE ON AN ARBITRARY MESH. THE COMPUTATIONAL MESH ITSELF IS FORMED AS THE UNION OF TETRAHEDRA, PENTAHEDRA AND FACETTED HEXAHEDRA, THE COMBINATION OF WHICH IS GEOMETRICALLY COMPLETELY GENERAL ADMITTING ARBITRARY LOCAL REFINEMENT. THEORETICALLY, CFD ALGORITHM IS A WEAK-STATEMENT FORM OF A TAYLOR SERIES EXPANSION, WHICH ADMITS ARBITRARILY COMPLICATED TEST AND TRIAL FUNCTIONS. THE GOAL OF THE ANALYSIS PROPOSED CONDUCTED IS TO OPTIMIZE THIS ALGORITHM TO THE CONFIGURATIONAERODYNAMICS PROBLEM CLASS WITH EMBODIMENT IN A MULTIPROCESSING-MULTITASKING COMPUTER ENVIRONMENT.

* information listed above is at the time of submission.

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