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RESEARCH PAPERS: Gas Turbines: Aircraft

Accuracy and Efficiency Assessments for a Weak Statement CFD Algorithm for High-Speed Aerodynamics

[+] Author and Article Information
G. S. Iannelli, A. J. Baker

Department of Engineering Science and Mechanics, University of Tennessee, Knoxville, TN 37996

J. Eng. Gas Turbines Power 116(3), 468-473 (Jul 01, 1994) (6 pages) doi:10.1115/1.2906844 History: Received February 28, 1992; Online April 24, 2008

Abstract

A bilinear finite element, implicit Runge-Kutta space-time discretization has been established for an aerodynamics weak statement CFD algorithm. The algorithm admits real-gas effect simulation, for reliable hypersonic flow characterization, via an equilibrium reacting air model. The terminal algebraic system is solved using an efficient block-tridiagonal quasi-Newton linear algebra procedure that employs tensor matrix product factorizations within a lexicographic mesh-sweeping protocol. A block solution-adaptive remeshing, for totally arbitrary convex elements, is also utilized to facilitate accurate shock and/or boundary layer flow resolution. Numerical validations are presented for representative benchmark supersonic-hypersonic aerodynamics problem statements.

Copyright © 1994 by The American Society of Mechanical Engineers
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