Accession Number:

ADA301993

Title:

Efficient Implementation of Weighted ENO Schemes.

Descriptive Note:

Contractor rept.,

Corporate Author:

INSTITUTE FOR COMPUTER APPLICATIONS IN SCIENCE AND ENGINEERING HAMPTON VA

Personal Author(s):

Report Date:

1995-10-01

Pagination or Media Count:

42.0

Abstract:

In this paper, we further analyze, test, modify and improve the high order WENO weighted essentially non-oscillatory finite difference schemes of Liu, Osher and Chan 9. It was shown by Liu et al. that WENO schemes constructed from the rth order in L1 norm ENO schemes are r 1th order accurate. We propose a new way of measuring the smoothness of a numerical solution, emulating the idea of minimizing the total variation of the approximation, which results in a 5th order WENO scheme for the case r 3, instead of the 4th order with the original

Subject Categories:

  • Numerical Mathematics
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE