Numerical testing of the stability of viscous shock waves

Author:
Leon Q. Brin

Journal:
Math. Comp. **70** (2001), 1071-1088

MSC (2000):
Primary 35B35, 65L70, 35-04; Secondary 35L65

Published electronically:
November 27, 2000

MathSciNet review:
1710652

Full-text PDF Free Access

Abstract | References | Similar Articles | Additional Information

A new theoretical Evans function condition is used as the basis of a numerical test of viscous shock wave stability. Accuracy of the method is demonstrated through comparison against exact solutions, a convergence study, and evaluation of approximate error equations. Robustness is demonstrated by applying the method to waves for which no current analytic results apply (highly nonlinear waves from the cubic model and strong shocks from gas dynamics). An interesting aspect of the analysis is the need to incorporate features from the analytic Evans function theory for purposes of numerical stability. For example, we find it necessary, for numerical accuracy, to solve ODEs on the space of wedge products.

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Additional Information

**Leon Q. Brin**

Affiliation:
Southern Connecticut State University, Department of Mathematics, New Haven, Connecticut 06515

Email:
brin@southernct.edu

DOI:
https://doi.org/10.1090/S0025-5718-00-01237-0

Received by editor(s):
January 4, 1999

Received by editor(s) in revised form:
June 24, 1999

Published electronically:
November 27, 2000

Article copyright:
© Copyright 2000
American Mathematical Society