Model reduction of kinetic equations by operator projection
- Author
- Yuwei Fan, Julian Köllermeier (UGent) , Jun Li, Ruo Li and Manuel Torrilhon
- Organization
- Abstract
- By a further study of the mechanism of the hyperbolic regularization of the moment system for the Boltzmann equation proposed in Cai et al. (Commun Math Sci 11(2):547-571, 2013), we point out that the key point is treating the time and space derivative in the same way. Based on this understanding, a uniform framework to derive globally hyperbolic moment systems from kinetic equations using an operator projection method is proposed. The framework is so concise and clear that it can be treated as an algorithm with four inputs to derive hyperbolic moment systems by routine calculations. Almost all existing globally hyperbolic moment systems can be included in the framework, as well as some new moment systems including globally hyperbolic regularized versions of Grad's ordered moment systems and a multi-dimensional extension of the quadrature-based moment system.
- Keywords
- Kinetic equation, Boltzmann equation, Moment method, Projection, Hyperbolicity, Regularization, GLOBALLY HYPERBOLIC REGULARIZATION, MOMENT EQUATIONS, FRAMEWORK, CLOSURE
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-01JZ09729EGB7YY4CH6D1QP6PT
- MLA
- Fan, Yuwei, et al. “Model Reduction of Kinetic Equations by Operator Projection.” JOURNAL OF STATISTICAL PHYSICS, vol. 162, no. 2, 2015, pp. 457–86, doi:10.1007/s10955-015-1384-9.
- APA
- Fan, Y., Köllermeier, J., Li, J., Li, R., & Torrilhon, M. (2015). Model reduction of kinetic equations by operator projection. JOURNAL OF STATISTICAL PHYSICS, 162(2), 457–486. https://doi.org/10.1007/s10955-015-1384-9
- Chicago author-date
- Fan, Yuwei, Julian Köllermeier, Jun Li, Ruo Li, and Manuel Torrilhon. 2015. “Model Reduction of Kinetic Equations by Operator Projection.” JOURNAL OF STATISTICAL PHYSICS 162 (2): 457–86. https://doi.org/10.1007/s10955-015-1384-9.
- Chicago author-date (all authors)
- Fan, Yuwei, Julian Köllermeier, Jun Li, Ruo Li, and Manuel Torrilhon. 2015. “Model Reduction of Kinetic Equations by Operator Projection.” JOURNAL OF STATISTICAL PHYSICS 162 (2): 457–486. doi:10.1007/s10955-015-1384-9.
- Vancouver
- 1.Fan Y, Köllermeier J, Li J, Li R, Torrilhon M. Model reduction of kinetic equations by operator projection. JOURNAL OF STATISTICAL PHYSICS. 2015;162(2):457–86.
- IEEE
- [1]Y. Fan, J. Köllermeier, J. Li, R. Li, and M. Torrilhon, “Model reduction of kinetic equations by operator projection,” JOURNAL OF STATISTICAL PHYSICS, vol. 162, no. 2, pp. 457–486, 2015.
@article{01JZ09729EGB7YY4CH6D1QP6PT,
abstract = {{By a further study of the mechanism of the hyperbolic regularization of the moment system for the Boltzmann equation proposed in Cai et al. (Commun Math Sci 11(2):547-571, 2013), we point out that the key point is treating the time and space derivative in the same way. Based on this understanding, a uniform framework to derive globally hyperbolic moment systems from kinetic equations using an operator projection method is proposed. The framework is so concise and clear that it can be treated as an algorithm with four inputs to derive hyperbolic moment systems by routine calculations. Almost all existing globally hyperbolic moment systems can be included in the framework, as well as some new moment systems including globally hyperbolic regularized versions of Grad's ordered moment systems and a multi-dimensional extension of the quadrature-based moment system.}},
author = {{Fan, Yuwei and Köllermeier, Julian and Li, Jun and Li, Ruo and Torrilhon, Manuel}},
issn = {{0022-4715}},
journal = {{JOURNAL OF STATISTICAL PHYSICS}},
keywords = {{Kinetic equation,Boltzmann equation,Moment method,Projection,Hyperbolicity,Regularization,GLOBALLY HYPERBOLIC REGULARIZATION,MOMENT EQUATIONS,FRAMEWORK,CLOSURE}},
language = {{eng}},
number = {{2}},
pages = {{457--486}},
title = {{Model reduction of kinetic equations by operator projection}},
url = {{http://doi.org/10.1007/s10955-015-1384-9}},
volume = {{162}},
year = {{2015}},
}
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