nvestigation of a Broad category Of AUSM Family in the 1D and 2D Unsteady Flows

Authors

1 Ferdowsi university of Mashhad, Mashhad ,Iran

2 Ferdowsi University of Mashhad

Abstract

The comprasion of AUSM Family through the Controle volume method and an unstructured data storage strategy is conducted in this research. Evaluation of the compressible-flow scheme solutions in unsteady flows, due to their time-dependence complications can provide an insight into such solutions to recognize and explaine their strengths and weaknesses. Accordingly, in order to identify the more efficient methods in the broad category of the AUSM family in terms of accurate prediction of the characteristics of unsteady flow fields, the AUSM family was evaluated by performing 1D and 2D shock tube tests. Distinctively, the present work evaluates a majority of the legendary modifications proposed to the AUSM scheme, in the 1D and 2D unsteady tests to formulate the most efficient yet accurate solution strategy. Based on the analysis, it was found that, in the 1D test, the SLAU-based methods, rather than the modified AUSM schemes, offered better potentials for predicting the expansion and compressive waves. It was further revealed that, among the various modifications made to the AUSM, the AUSM+M and AUSMSV led to better outcomes. In the 2D shock tube test, the ASUM+, AUSM+FVS, and AUSMPW, which exhibited no or merely subtle vibrations in the 1D test, were found to be strongly affected and exhibited intensive instabilities

Keywords

References

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Journal of Solid and Fluid Mechanics
Volume 10, Issue 4
December 2021
Pages 303-315

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