A method is presented which allows diffusion terms to be treated implicitly in the lower-upper (LU) algorithm (which is a commonly used method for solving 'compressible' Euler and Navier-Stokes equations) so that the algorithm's good stability properties will not be impaired. The new method generalizes the concept of LU factorization from that associated with the sign of eigenvalues to that associated with backward- and forward-difference operators without regard to eigenvalues. The method is verified in a turbulent boundary layer study.
Implicit treatment of diffusion terms in lower-upper algorithms
AIAA Journal ; 31 , 4
01.04.1993
Sonstige
Keine Angabe
Englisch
Implicit Treatment of Diffusion Terms in Lower-Upper Algorithms (TN)
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