The Effect of Thermochemistry on Prediction of Aerothermodynamic Loading over a Double Cone in a Laminar Hypersonic Flow

Kianvashrad, Nadia; Knight, Doyle

doi:10.2514/6.2018-1812

Cited by 10 publications

(3 citation statements)

References 13 publications

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“…The results of the comparison show significant differences in flow quantities computed with various models. For some flow configurations, taking into account the effects of thermochemical non-equilibrium either has no effect or leads to small differences in the results obtained with equilibrium and non-equilibrium models [35]. A comparison of various models for describing the vibrational kinetics and chemical reactions in gas mixtures, as well as estimates of the effects of the initial vibrational nonequilibrium in a spatially homogeneous mixture and the influence of the vibrational excitation of gas molecules in free flow on the flow quantities behind the shock wave front are given in [36,37].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model

Karpenko,

Tolstoguzov,

Volkov

2023

Fluids

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Steady-state one-dimensional flows of five-component air behind a normal shock wave are considered with a one-temperature model. A mathematical model is formulated to describe the relaxation of a five-component air mixture with a one-temperature non-equilibrium approximation. A numerical study of non-equilibrium flows of a reacting five-component air mixture behind shock waves at different heights and velocities of free flow is performed. The contribution of different types of reactions to the overall relaxation of the mixture is discussed, and the distributions of macro-parameters of the flow behind the shock wave front are calculated. The lengths of the relaxation zones behind the shock wave front are compared at different initial conditions. Calculations are performed for the standard model of atmosphere.

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Section: Introductionmentioning

confidence: 99%

Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model

Karpenko,

Tolstoguzov,

Volkov

2023

Fluids

View full text Add to dashboard Cite

show abstract

“…The results of the comparison show 3 of 21 significant differences in flow quantities computed with various models. For some flow configurations, taking into account the effects of thermochemical non-equilibrium either has no effect or leads to small differences in the results obtained with equilibrium and non-equilibrium models [35]. Comparison of various models for describing the vibrational kinetics and chemical reactions in gas mixtures, as well as estimates of the effects of the initial vibrational nonequilibrium in a spatially homogeneous mixture and the influence of the vibrational excitation of gas molecules in free flow on the flow quantities behind the shock wave front are given in [36,37].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model

Karpenko,

Tolstoguzov,

Volkov

2023

Preprint

View full text Add to dashboard Cite

Steady-state one-dimensional flows of five-component air behind a normal shock wave are considered with one-temperature model. A mathematical model is formulated to describe the relaxation of a five-component air mixture with a one-temperature non-equilibrium approximation. A numerical study of non-equilibrium flows of a reacting five-component air mixture behind shock waves at different heights and velocities of free flow is performed. The contribution of different types of reactions to the overall relaxation of the mixture is discussed, and the distributions of macro-parameters of the flow behind the shock wave front are calculated. The lengths of the relaxation zones behind the shock wave front are compared at different initial conditions.

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“…Stemmer of the SST turbulence model for turbulent shock wave -boundary layer interactions is examined by Brown (2014). Better modeling of reacting flows has been investigated by Park (1985) and Kianvashrad and Knight (2018).…”

Section: Previous Workmentioning

confidence: 99%

Computational characterization of shock wave - boundary layer Interactions on flat plates and compression ramps in laminar, hypersonic flow

Shellabarger

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The Effect of Thermochemistry on Prediction of Aerothermodynamic Loading over a Double Cone in a Laminar Hypersonic Flow

Cited by 10 publications

References 13 publications

Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model

Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model

Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model

Computational characterization of shock wave - boundary layer Interactions on flat plates and compression ramps in laminar, hypersonic flow

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