An improved low-dissipation AUSMPW+ scheme for low Mach number

Shusheng Chen; Chao Yan; Boxi Lin; Erlong Li

doi:10.1109/ICMAE.2017.8038701

An improved low-dissipation AUSMPW+ scheme for low Mach number

Shusheng Chen, Chao Yan, Boxi Lin, Erlong Li

Beihang University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

The paper suggests a modification of AUSMPW+ scheme designed to low Mach number. For Mach number vanishing, AUSMPW+ scheme has an excessive numerical dissipation to result in the incorrect scaling of pressure and density fluctuations. The modification rescales all velocity components in the numerical flux by the local Mach number. The improved method reduces the dissipation and recovers the correct scaling of pressure and density fluctuations, which is proved by low Mach number cases. In addition, the improved scheme performs the stronger independence than AUSMPW+ in terms of grid, reconstruction method, and Mach number at low speeds.

Original language	English
Title of host publication	2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	522-526
Number of pages	5
ISBN (Electronic)	9781538633052
DOIs	https://doi.org/10.1109/ICMAE.2017.8038701
State	Published - 14 Sep 2017
Externally published	Yes
Event	8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017 - Prague, Czech Republic Duration: 22 Jul 2017 → 25 Jul 2017

Publication series

Name	2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017

Conference

Conference	8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017
Country/Territory	Czech Republic
City	Prague
Period	22/07/17 → 25/07/17

Keywords

low Mach number
numerical dissipation
pressure fluctuations
rescale
stronger independence

Access to Document

10.1109/ICMAE.2017.8038701

Cite this

Chen, S., Yan, C., Lin, B., & Li, E. (2017). An improved low-dissipation AUSMPW+ scheme for low Mach number. In 2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017 (pp. 522-526). Article 8038701 (2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICMAE.2017.8038701

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abstract = "The paper suggests a modification of AUSMPW+ scheme designed to low Mach number. For Mach number vanishing, AUSMPW+ scheme has an excessive numerical dissipation to result in the incorrect scaling of pressure and density fluctuations. The modification rescales all velocity components in the numerical flux by the local Mach number. The improved method reduces the dissipation and recovers the correct scaling of pressure and density fluctuations, which is proved by low Mach number cases. In addition, the improved scheme performs the stronger independence than AUSMPW+ in terms of grid, reconstruction method, and Mach number at low speeds.",

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author = "Shusheng Chen and Chao Yan and Boxi Lin and Erlong Li",

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Chen, S, Yan, C, Lin, B & Li, E 2017, An improved low-dissipation AUSMPW+ scheme for low Mach number. in 2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017., 8038701, 2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017, Institute of Electrical and Electronics Engineers Inc., pp. 522-526, 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017, Prague, Czech Republic, 22/07/17. https://doi.org/10.1109/ICMAE.2017.8038701

An improved low-dissipation AUSMPW+ scheme for low Mach number. / Chen, Shusheng; Yan, Chao; Lin, Boxi et al.
2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 522-526 8038701 (2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - The paper suggests a modification of AUSMPW+ scheme designed to low Mach number. For Mach number vanishing, AUSMPW+ scheme has an excessive numerical dissipation to result in the incorrect scaling of pressure and density fluctuations. The modification rescales all velocity components in the numerical flux by the local Mach number. The improved method reduces the dissipation and recovers the correct scaling of pressure and density fluctuations, which is proved by low Mach number cases. In addition, the improved scheme performs the stronger independence than AUSMPW+ in terms of grid, reconstruction method, and Mach number at low speeds.

AB - The paper suggests a modification of AUSMPW+ scheme designed to low Mach number. For Mach number vanishing, AUSMPW+ scheme has an excessive numerical dissipation to result in the incorrect scaling of pressure and density fluctuations. The modification rescales all velocity components in the numerical flux by the local Mach number. The improved method reduces the dissipation and recovers the correct scaling of pressure and density fluctuations, which is proved by low Mach number cases. In addition, the improved scheme performs the stronger independence than AUSMPW+ in terms of grid, reconstruction method, and Mach number at low speeds.

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KW - numerical dissipation

KW - pressure fluctuations

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KW - stronger independence

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Chen S, Yan C, Lin B, Li E. An improved low-dissipation AUSMPW+ scheme for low Mach number. In 2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017. Institute of Electrical and Electronics Engineers Inc. 2017. p. 522-526. 8038701. (2017 8th International Conference on Mechanical and Aerospace Engineering, ICMAE 2017). doi: 10.1109/ICMAE.2017.8038701

An improved low-dissipation AUSMPW+ scheme for low Mach number

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