A Wavelet Based Dissipation Method for ALE Schemes

Cabot, B ; Eliason, D. ; Jameson, L.

Lawrence Livermore National Laboratory

关键词: Noise;    Lawrence Livermore National Laboratory;    Numerical Analysis;    99 General And Miscellaneous//Mathematics, Computing, And Information Science;   

DOI  :  10.2172/793693
RP-ID  :  UCRL-ID-140074
RP-ID  :  W-7405-Eng-48
RP-ID  :  793693

美国|英语

来源: UNT Digital Library

【 摘 要 】

Wavelet analysis is natural tool to detect the presence of numerical noise, shocks and other features which might drive a calculation to become unstable. Here we suggest ways where wavelets can be used effectively to define a dissipation flag to replace dissipation flags traditionally used in ALE numerical schemes.