Extension of CE/SE method to non-equilibrium dissociating flows

Chih-yung Wen; H. Saldivar Massimi; H. Shen

doi:10.1016/j.jcp.2017.12.005

Extension of CE/SE method to non-equilibrium dissociating flows

Chih-yung Wen, H. Saldivar Massimi, H. Shen

Research output: Journal article publication › Journal article › Academic research › peer-review

15 Citations (Scopus)

Abstract

In this study, the hypersonic non-equilibrium flows over rounded nose geometries are numerically investigated by a robust conservation element and solution element (CE/SE) code, which is based on hybrid meshes consisting of triangular and quadrilateral elements. The dissociating and recombination chemical reactions as well as the vibrational energy relaxation are taken into account. The stiff source terms are solved by an implicit trapezoidal method of integration. Comparison with laboratory and numerical cases are provided to demonstrate the accuracy and reliability of the present CE/SE code in simulating hypersonic non-equilibrium flows.

Original language	English
Pages (from-to)	240-260
Number of pages	21
Journal	Journal of Computational Physics
Volume	356
DOIs	https://doi.org/10.1016/j.jcp.2017.12.005
Publication status	Published - 1 Mar 2018

Keywords

CE/SE
Chemical reacting
Hypersonic
Non-equilibrium
Shock waves

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
Computer Science Applications

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10.1016/j.jcp.2017.12.005

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title = "Extension of CE/SE method to non-equilibrium dissociating flows",

abstract = "In this study, the hypersonic non-equilibrium flows over rounded nose geometries are numerically investigated by a robust conservation element and solution element (CE/SE) code, which is based on hybrid meshes consisting of triangular and quadrilateral elements. The dissociating and recombination chemical reactions as well as the vibrational energy relaxation are taken into account. The stiff source terms are solved by an implicit trapezoidal method of integration. Comparison with laboratory and numerical cases are provided to demonstrate the accuracy and reliability of the present CE/SE code in simulating hypersonic non-equilibrium flows.",

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author = "Chih-yung Wen and {Saldivar Massimi}, H. and H. Shen",

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AU - Wen, Chih-yung

AU - Saldivar Massimi, H.

AU - Shen, H.

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Y1 - 2018/3/1

N2 - In this study, the hypersonic non-equilibrium flows over rounded nose geometries are numerically investigated by a robust conservation element and solution element (CE/SE) code, which is based on hybrid meshes consisting of triangular and quadrilateral elements. The dissociating and recombination chemical reactions as well as the vibrational energy relaxation are taken into account. The stiff source terms are solved by an implicit trapezoidal method of integration. Comparison with laboratory and numerical cases are provided to demonstrate the accuracy and reliability of the present CE/SE code in simulating hypersonic non-equilibrium flows.

AB - In this study, the hypersonic non-equilibrium flows over rounded nose geometries are numerically investigated by a robust conservation element and solution element (CE/SE) code, which is based on hybrid meshes consisting of triangular and quadrilateral elements. The dissociating and recombination chemical reactions as well as the vibrational energy relaxation are taken into account. The stiff source terms are solved by an implicit trapezoidal method of integration. Comparison with laboratory and numerical cases are provided to demonstrate the accuracy and reliability of the present CE/SE code in simulating hypersonic non-equilibrium flows.

KW - CE/SE

KW - Chemical reacting

KW - Hypersonic

KW - Non-equilibrium

KW - Shock waves

UR - http://www.scopus.com/inward/record.url?scp=85038013269&partnerID=8YFLogxK

U2 - 10.1016/j.jcp.2017.12.005

DO - 10.1016/j.jcp.2017.12.005

M3 - Journal article

SN - 0021-9991

VL - 356

SP - 240

EP - 260

JO - Journal of Computational Physics

JF - Journal of Computational Physics

ER -

Extension of CE/SE method to non-equilibrium dissociating flows

Abstract

Keywords

ASJC Scopus subject areas

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