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Record Details

Record 5 of 11424
Finite element concepts in computational aerodynamics
Author and Affiliation:
Baker, A. J.(Tennessee Univ., Knoxville, TN, United States)
Abstract: Finite element theory was employed to establish an implicit numerical solution algorithm for the time averaged unsteady Navier-Stokes equations. Both the multidimensional and a time-split form of the algorithm were considered, the latter of particular interest for problem specification on a regular mesh. A Newton matrix iteration procedure is outlined for solving the resultant nonlinear algebraic equation systems. Multidimensional discretization procedures are discussed with emphasis on automated generation of specific nonuniform solution grids and accounting of curved surfaces. The time-split algorithm was evaluated with regards to accuracy and convergence properties for hyperbolic equations on rectangular coordinates. An overall assessment of the viability of the finite element concept for computational aerodynamics is made.
Publication Date: Feb 01, 1978
Document ID:
19780011858
(Acquired Nov 18, 1995)
Accession Number: 78N19801
Subject Category: COMPUTER PROGRAMMING AND SOFTWARE
Document Type: Conference Paper
Publication Information: NASA. Ames Res. Center Future Computer Requirements for Computational Aerodynamics; p 278-289
Publisher Information: United States
Contract/Grant/Task Num: NAS1-14307; NSG-1261; NSG-1391
Financial Sponsor: NASA; United States
Organization Source: Tennessee Univ.; Knoxville, TN, United States
Description: 12p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: AERODYNAMICS; COMPUTERIZED SIMULATION; FINITE ELEMENT METHOD; ALGORITHMS; ITERATION; NAVIER-STOKES EQUATION; NEWTON METHODS; NONLINEAR EQUATIONS
Imprint And Other Notes: In NASA. Ames Res. Center Future Computer Requirements for Computational Aerodynamics p 278-289 (SEE N78-19778 10-59)
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