Vorticity Preserving Flux Corrected Transport Scheme for the Acoustic Equations

Lung, Tyler B.¹  Roe, Phil²  Morgan, Nathaniel R.¹ 

[1] Los Alamos National Laboratory;University of Michigan

关键词: ACCURACY;    ACOUSTICS;    ALGORITHMS;    LAGRANGIAN FUNCTION;    PERFORMANCE;    PHYSICS;    TRANSPORT;   

DOI  :  10.2172/1048874
RP-ID  :  LA-UR-12-24150
PID  :  OSTI ID: 1048874
Others  :  TRN: US201217%%383

美国|英语

来源: SciTech Connect

【 摘 要 】

Long term research goals are to develop an improved cell-centered Lagrangian Hydro algorithm with the following qualities: 1. Utilizes Flux Corrected Transport (FCT) to achieve second order accuracy with multidimensional physics; 2. Does not rely on the one-dimensional Riemann problem; and 3. Implements a form of vorticity control. Short term research goals are to devise and implement a 2D vorticity preserving FCT solver for the acoustic equations on an Eulerian mesh: 1. Develop a flux limiting mechanism for systems of governing equations with symmetric wave speeds; 2. Verify the vorticity preserving properties of the scheme; and 3. Compare the performance of the scheme to traditional MUSCL-Hancock and other algorithms.