Numerical simulation of nonequilibrium flows by using the state-to-state approach in commercial software

O. V. Kunova; G. V. Shoev; A. N. Kudryavtsev

doi:10.1134/S0869864317010024

Numerical simulation of nonequilibrium flows by using the state-to-state approach in commercial software

O. V. Kunova, G. V. Shoev, A. N. Kudryavtsev

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Nonequilibrium flows of a two-component oxygen mixture O₂/O behind a shock wave are studied with due allowance for the state-to-state vibrational and chemical kinetics. The system of gas-dynamic equations is supplemented with kinetic equations including contributions of VT (TV)-exchange and dissociation processes. A method of the numerical solution of this system with the use of the ANSYS Fluent commercial software package is proposed, which is used in a combination with the authors’ code that takes into account nonequilibrium kinetics. The computed results are compared with parameters obtained by solving the problem in the shock-fitting formulation. The vibrational temperature is compared with experimental data. The numerical tool proposed in the present paper is applied to study the flow around a cylinder.

Original language	English
Pages (from-to)	7-17
Number of pages	11
Journal	Thermophysics and Aeromechanics
Volume	24
Issue number	1
DOIs	https://doi.org/10.1134/S0869864317010024
Publication status	Published - 1 Jan 2017

Keywords

nonequilibrium dissociation
numerical simulation
shock wave
state-to-state kinetics
vibrational relaxation

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10.1134/S0869864317010024

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title = "Numerical simulation of nonequilibrium flows by using the state-to-state approach in commercial software",

abstract = "Nonequilibrium flows of a two-component oxygen mixture O2/O behind a shock wave are studied with due allowance for the state-to-state vibrational and chemical kinetics. The system of gas-dynamic equations is supplemented with kinetic equations including contributions of VT (TV)-exchange and dissociation processes. A method of the numerical solution of this system with the use of the ANSYS Fluent commercial software package is proposed, which is used in a combination with the authors{\textquoteright} code that takes into account nonequilibrium kinetics. The computed results are compared with parameters obtained by solving the problem in the shock-fitting formulation. The vibrational temperature is compared with experimental data. The numerical tool proposed in the present paper is applied to study the flow around a cylinder.",

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AU - Shoev, G. V.

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N2 - Nonequilibrium flows of a two-component oxygen mixture O2/O behind a shock wave are studied with due allowance for the state-to-state vibrational and chemical kinetics. The system of gas-dynamic equations is supplemented with kinetic equations including contributions of VT (TV)-exchange and dissociation processes. A method of the numerical solution of this system with the use of the ANSYS Fluent commercial software package is proposed, which is used in a combination with the authors’ code that takes into account nonequilibrium kinetics. The computed results are compared with parameters obtained by solving the problem in the shock-fitting formulation. The vibrational temperature is compared with experimental data. The numerical tool proposed in the present paper is applied to study the flow around a cylinder.

AB - Nonequilibrium flows of a two-component oxygen mixture O2/O behind a shock wave are studied with due allowance for the state-to-state vibrational and chemical kinetics. The system of gas-dynamic equations is supplemented with kinetic equations including contributions of VT (TV)-exchange and dissociation processes. A method of the numerical solution of this system with the use of the ANSYS Fluent commercial software package is proposed, which is used in a combination with the authors’ code that takes into account nonequilibrium kinetics. The computed results are compared with parameters obtained by solving the problem in the shock-fitting formulation. The vibrational temperature is compared with experimental data. The numerical tool proposed in the present paper is applied to study the flow around a cylinder.

KW - nonequilibrium dissociation

KW - numerical simulation

KW - shock wave

KW - state-to-state kinetics

KW - vibrational relaxation

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Numerical simulation of nonequilibrium flows by using the state-to-state approach in commercial software

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