TY - CONF T1 - Local Adaption and Dissipation Properties of a Weighted Essentially Non-Oscillatory Scheme T2 - 34th AIAA Fluid Dynamics Conference and Exhibit Y1 - 2004 A1 - Taylor,E. M A1 - Martin, M.P A1 - Weirs,V. G AB - We perform several direct numerical simulations (DNS) of decaying isotropic turbulencewith various initial turbulent mach numbers Mt using a modifiedi weighted essentially non-oscillatory (WENO) method. We then present a procedure for the identification of shock-containing and smooth regions where the WENO scheme should respectively engage its adaption mechanism and revert to its linear optimal stencil. Weirsi has previously proposed the centrality index CI and nonlinearity index NI as two quantitative measures of stencil adaption, and we analyze these values within the regions of interest in the DNS flow fields. Our preliminary results indicate that these indices are suitable for assessments of the local adaption and dissipation properties of the WENO method; however, further studies must be conducted over a wider range of compressible flow conditions. JA - 34th AIAA Fluid Dynamics Conference and Exhibit CY - Portland, OR ER -