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arXiv · 1912.11062

Consistent Kinetic-Continuum Dissociation Model II: Continuum Formulation and Verification

Narendra Singh·Thomas Schwartzentruber
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Abstract

In this article, we implement a recently developed non-equilibrium chemical kinetics model \cite{singhmodeldevelopment2019} based on \textit{ab initio} simulation data and perform verification studies. Direct molecular simulation data is used to verify the predictive capabilities of the model. Using the model, dominant physics such as need for a rotational energy equation, and the quantitative role of non-Boltzmann effects are identified. Based on the analysis and reasonable assumptions, a simplified model for implementation into large-scale CFD simulations is proposed. Without incurring additional computational cost, the model can be used in existing flow solvers to analyze hypersonic flows.

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Narendra Singh, Thomas Schwartzentruber. 2019-12-23. Consistent Kinetic-Continuum Dissociation Model II: Continuum Formulation and Verification. https://doi.org/10.1063/1.5142754

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