Hostname: page-component-6766d58669-6mz5d Total loading time: 0 Render date: 2026-05-15T10:41:52.850Z Has data issue: false hasContentIssue false

AUSM-Based High-Order Solution for Euler Equations

Published online by Cambridge University Press:  20 August 2015

Angelo L. Scandaliato*
Affiliation:
Ohio Aerospace Institute, Cleveland, OH, 44142, USA
Meng-Sing Liou*
Affiliation:
NASA Glenn Research Center, Cleveland, OH, 44135, USA
*
Corresponding author.Email:meng-sing.liou@nasa.gov
Get access

Abstract

In this paper we demonstrate the accuracy and robustness of combining the advection upwind splitting method (AUSM), specifically AUSM+-UP, with high-order upwind-biased interpolation procedures, the weighted essentially non-oscillatory (WENO-JS) scheme and its variations, and the monotonicity preserving (MP) scheme, for solving the Euler equations. MP is found to be more effective than the three WENO variations studied. AUSM+-UP is also shown to be free of the so-called “carbuncle” phenomenon with the high-order interpolation. The characteristic variables are preferred for interpolation after comparing the results using primitive and conservative variables, even though they require additional matrix-vector operations. Results using the Roe flux with an entropy fix and the Lax-Friedrichs approximate Riemann solvers are also included for comparison. In addition, four reflective boundary condition implementations are compared for their effects on residual convergence and solution accuracy. Finally, a measure for quantifying the efficiency of obtaining high order solutions is proposed; the measure reveals that a maximum return is reached after which no improvement in accuracy is possible for a given grid size.

Information

Type
Research Article
Copyright
Copyright © Global Science Press Limited 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable