𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Continuum shock profiles for discrete conservation laws II: Stability

✍ Scribed by Tai-Ping Liu; Shih-Hsien Yu


Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
445 KB
Volume
52
Category
Article
ISSN
0010-3640

No coin nor oath required. For personal study only.

✦ Synopsis


We show that the continuum shock profiles for dissipative difference schemes constructed in Part I are nonlinearly stable. It is shown first that the profiles have the conservation property, obtained as the limit of the discrete version for profiles with nearby rational, quasi-Diophantine speeds. This allows us to formulate antidifferencing of the schemes and to apply a generalization of the pointwise approach for viscous conservation laws for the stability analysis.


πŸ“œ SIMILAR VOLUMES


Continuum shock profiles for discrete co
✍ Tai-Ping Liu; Shih-Hsien Yu πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 508 KB

We construct continuum shock profiles for finite difference schemes for hyperbolic conservation laws. Our analysis is based on the time-asymptotic estimates for solutions of the difference schemes. Our result applies to dissipative schemes with the nonresonance property, such as the Lax-Friedrichs a

The Discrete Geometric Conservation Law
✍ Charbel Farhat; Philippe Geuzaine; CΓ©line Grandmont πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 278 KB

Discrete geometric conservation laws (DGCLs) govern the geometric parameters of numerical schemes designed for the solution of unsteady flow problems on moving grids. A DGCL requires that these geometric parameters, which include among others grid positions and velocities, be computed so that the co