%0Computer Program
%Tsta-imex (scripts to investigate stability of IMEX methods)
%XSet of Matlab scripts to investigate properties of IMEX time stepping methods. Scripts include discretization of a system of linearized equations. One script plots numerical dispersion against analytical dispersion of the system. Another set of scripts uses the system to break it into stiff and non stiff part to investigate stability of Implicit-Explicit Runge-Kutta methods. 

Scripts are based on 
Thuburn, J. and Woollings, T. J., Vertical Discretizations for Compressible Euler Equation Atmospheric Models Giving Optimal Representation of Normal Modes , 2005 and
Lock, S.-J. and Wood, N. and  Weller, H., Numerical analyses of Runge-Kutta implicit-explicit schemes for horizontally explicit, vertically implicit solutions of atmospheric models, 2014
expanding ideas from these two papers.

Scripts are used to develop IMEX schemes. SAND2020-12594 M

Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525.
%AGuba, Oksana
%ASteyer, Andrew
%Rhttps://doi.org/10.11578/dc.20201113.2
%Uhttps://www.osti.gov/doecode/biblio/47024
%CUnited States
%D2020
%GEnglish
%2USDOE
%1NA0003525
2020-04-06