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http://dx.doi.org/10.5139/JKSAS.2007.35.12.1067

Temperature Preconditioning for Improving Convergence Characteristics in Calculating Low Mach Number Flows, I: Euler Equations  

Lee, Sang-Hyeon (울산대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.35, no.12, 2007 , pp. 1067-1074 More about this Journal
Abstract
A temperature preconditioning that modulates the derivative of density with respect to temperature is proposed to improve the convergence characteristics of the preconditioned Euler equations. Flows in a two-dimensional channel with a 10% circular bump in the middle of the channel were calculated at different speeds. The numerical dissipation terms of the Roe’s FDS scheme according to the temperature preconditioning are derived. It is shown that the temperature preconditioning accelerates convergence of the preconditioned Euler equations.
Keywords
Temperature Preconditioning; Convergence Characteristics; Euler Equations;
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Times Cited By KSCI : 1  (Citation Analysis)
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