A unified computational fluid dynamics framework from rarefied to continuum regimes:
This Element presents a unified computational fluid dynamics framework from rarefied to continuum regimes. The framework is based on the direct modelling of flow physics in a discretized space. The mesh size and time step are used as modelling scales in the construction of discretized governing equa...
Gespeichert in:
| Beteilige Person: | |
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| Format: | E-Book |
| Sprache: | Englisch |
| Veröffentlicht: |
Cambridge
Cambridge University Press
2021
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| Schriftenreihe: | Cambridge elements. Elements in Aerospace Engineering
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| Links: | https://doi.org/10.1017/9781108877534 |
| Zusammenfassung: | This Element presents a unified computational fluid dynamics framework from rarefied to continuum regimes. The framework is based on the direct modelling of flow physics in a discretized space. The mesh size and time step are used as modelling scales in the construction of discretized governing equations. With the variation-of-cell Knudsen number, continuous modelling equations in different regimes have been obtained, and the Boltzmann and Navier-Stokes equations become two limiting equations in the kinetic and hydrodynamic scales. The unified algorithms include the discrete velocity method (DVM)-based unified gas-kinetic scheme (UGKS), the particlebased unified gas-kinetic particle method (UGKP), and the wave and particle-based unified gas-kinetic wave-particle method (UGKWP). The UGKWP is a multi-scale method with the particle for non-equilibrium transport and wave for equilibrium evolution. The particle dynamics in the rarefied regime and the hydrodynamic flow solver in the continuum regime have been unified according to the cell's Knudsen number. |
| Umfang: | 1 Online-Ressource (97 Seiten) |
| ISBN: | 9781108877534 |
| ISSN: | 2631-7850 |
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| 520 | |a This Element presents a unified computational fluid dynamics framework from rarefied to continuum regimes. The framework is based on the direct modelling of flow physics in a discretized space. The mesh size and time step are used as modelling scales in the construction of discretized governing equations. With the variation-of-cell Knudsen number, continuous modelling equations in different regimes have been obtained, and the Boltzmann and Navier-Stokes equations become two limiting equations in the kinetic and hydrodynamic scales. The unified algorithms include the discrete velocity method (DVM)-based unified gas-kinetic scheme (UGKS), the particlebased unified gas-kinetic particle method (UGKP), and the wave and particle-based unified gas-kinetic wave-particle method (UGKWP). The UGKWP is a multi-scale method with the particle for non-equilibrium transport and wave for equilibrium evolution. The particle dynamics in the rarefied regime and the hydrodynamic flow solver in the continuum regime have been unified according to the cell's Knudsen number. | ||
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| id | ZDB-20-CTM-CR9781108877534 |
| illustrated | Not Illustrated |
| indexdate | 2025-03-03T11:58:00Z |
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| isbn | 9781108877534 |
| issn | 2631-7850 |
| language | English |
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| series2 | Cambridge elements. Elements in Aerospace Engineering |
| spelling | Xu, Kun A unified computational fluid dynamics framework from rarefied to continuum regimes Kun Xu Cambridge Cambridge University Press 2021 1 Online-Ressource (97 Seiten) txt c cr Cambridge elements. Elements in Aerospace Engineering 2631-7850 This Element presents a unified computational fluid dynamics framework from rarefied to continuum regimes. The framework is based on the direct modelling of flow physics in a discretized space. The mesh size and time step are used as modelling scales in the construction of discretized governing equations. With the variation-of-cell Knudsen number, continuous modelling equations in different regimes have been obtained, and the Boltzmann and Navier-Stokes equations become two limiting equations in the kinetic and hydrodynamic scales. The unified algorithms include the discrete velocity method (DVM)-based unified gas-kinetic scheme (UGKS), the particlebased unified gas-kinetic particle method (UGKP), and the wave and particle-based unified gas-kinetic wave-particle method (UGKWP). The UGKWP is a multi-scale method with the particle for non-equilibrium transport and wave for equilibrium evolution. The particle dynamics in the rarefied regime and the hydrodynamic flow solver in the continuum regime have been unified according to the cell's Knudsen number. Erscheint auch als Druck-Ausgabe 9781108792486 |
| spellingShingle | Xu, Kun A unified computational fluid dynamics framework from rarefied to continuum regimes |
| title | A unified computational fluid dynamics framework from rarefied to continuum regimes |
| title_auth | A unified computational fluid dynamics framework from rarefied to continuum regimes |
| title_exact_search | A unified computational fluid dynamics framework from rarefied to continuum regimes |
| title_full | A unified computational fluid dynamics framework from rarefied to continuum regimes Kun Xu |
| title_fullStr | A unified computational fluid dynamics framework from rarefied to continuum regimes Kun Xu |
| title_full_unstemmed | A unified computational fluid dynamics framework from rarefied to continuum regimes Kun Xu |
| title_short | A unified computational fluid dynamics framework from rarefied to continuum regimes |
| title_sort | unified computational fluid dynamics framework from rarefied to continuum regimes |
| work_keys_str_mv | AT xukun aunifiedcomputationalfluiddynamicsframeworkfromrarefiedtocontinuumregimes AT xukun unifiedcomputationalfluiddynamicsframeworkfromrarefiedtocontinuumregimes |