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Nonlinear dynamics and numerical uncertainties in CFD

Author
Yee, H. C.
Published
Apr. 1996.
Physical Description
1 electronic document
Additional Creators
Sweby, P. K.
Online Version

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Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
The application of nonlinear dynamics to improve the understanding of numerical uncertainties in computational fluid dynamics (CFD) is reviewed. Elementary examples in the use of dynamics to explain the nonlinear phenomena and spurious behavior that occur in numerics are given. The role of dynamics in the understanding of long time behavior of numerical integrations and the nonlinear stability, convergence, and reliability of using time-marching, approaches for obtaining steady-state numerical solutions in CFD is explained. The study is complemented with spurious behavior observed in CFD computations.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19960049992.
Accession ID: 96N34118.
A-96173.
NAS 1.15:110398.
NASA-TM-110398.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15649767