✦ LIBER ✦

Viscous stress relaxation, characteristics, and numerical boundary conditions

✍ Scribed by John A. Trapp; Victor H. Ransom

Publisher: John Wiley and Sons
Year: 1994
Tongue: English
Weight: 598 KB
Volume: 10
Category: Article
ISSN: 0749-159X
DOI: 10.1002/num.1690100309

No coin nor oath required. For personal study only.

✦ Synopsis

The anomalous infinite propagation speeds in the classical parabolic flow equations are removed by the inclusion of a small amount of fluid elasticity or viscous stress relaxation. The inclusion of such effects results in a hyperbolic system of equations with a complete set of characteristic equations. The directional characteristic equations are used to give insights into the appropriate boundary molecules to be used in finite difference numerical schemes.

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