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High-order, stable, and conservative boundary schemes for central and compact finite differences

Journal Article · · Computers and Fluids

Stable and conservative numerical boundary schemes are constructed such that they do not diminish the overall accuracy of the method for interior schemes of orders 4, 6, and 8 using both explicit (central) and compact finite differences. Previous attempts to develop stable numerical boundary schemes for non-linear problems have resulted in schemes which significantly reduced the global accuracy and/or required some form of artificial dissipation. Thus, the schemes developed in this paper are the first to not require this tradeoff, while also ensuring discrete conservation and allowing for direct boundary condition enforcement. After outlining a general procedure for the construction of conservative boundary schemes of any order, a simple, yet novel, optimization strategy which focuses directly on the compressible Euler equations is presented. Furthermore, the result of this non-linear optimization process is a set of high-order, stable, and conservative numerical boundary schemes which demonstrate excellent stability and convergence properties on an array of linear and non-linear hyperbolic problems.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1493552
Report Number(s):
LA-UR--17-21169
Journal Information:
Computers and Fluids, Journal Name: Computers and Fluids Vol. 183; ISSN 0045-7930
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (19)

The Stability of Numerical Boundary Treatments for Compact High-Order Finite-Difference Schemes journal October 1993
Time-Stable Boundary Conditions for Finite-Difference Schemes Solving Hyperbolic Systems: Methodology and Application to High-Order Compact Schemes journal April 1994
Direct Numerical Simulation of a Turbulent Reactive Plume on a Parallel Computer journal December 1996
Low-Dissipative High-Order Shock-Capturing Methods Using Characteristic-Based Filters journal March 1999
Strict Stability of High-Order Compact Implicit Finite-Difference Schemes: The Role of Boundary Conditions for Hyperbolic PDEs, II journal May 2000
On the Use of Higher-Order Finite-Difference Schemes on Curvilinear and Deforming Meshes journal September 2002
Compact finite difference schemes with spectral-like resolution journal November 1992
A robust high-order compact method for large eddy simulation journal November 2003
Improving the boundary efficiency of a compact finite difference scheme through optimising its composite template journal October 2016
Grid stabilization of high-order one-sided differencing I: First-order hyperbolic systems journal April 2007
Optimised boundary compact finite difference schemes for computational aeroacoustics journal July 2007
Transition stages of Rayleigh–Taylor instability between miscible fluids journal September 2001
Turbulence structure behind the shock in canonical shock–vortical turbulence interaction journal September 2014
Numerical study of variable density turbulence interaction with a normal shock wave journal September 2017
Artificial fluid properties for large-eddy simulation of compressible turbulent mixing journal May 2007
The convergence rate for difference approximations to mixed initial boundary value problems journal May 1975
Discrete Conservation Properties of Unstructured Mesh Schemes journal January 2011
M ODELING A RTIFICIAL B OUNDARY C ONDITIONS FOR C OMPRESSIBLE F LOW journal January 2004
High-Resolution Numerical Method for Supercritical Flows with Large Density Variations journal December 2011

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