2005
DOI: 10.1016/j.jcp.2004.06.023
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Accurate numerical methods for the collisional motion of (heated) granular flows

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Cited by 19 publications
(33 citation statements)
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“…We have implemented the first order (2.6) and second order (2.8) scheme for the approximation of the Boltzmann equation. Here, the Boltzmann collision operator is discretized by a deterministic method [22][23][24][25]27,52], which gives a spectrally accurate approximation. A classical second order finite volume scheme with slope limiters is applied for the transport operator as sdescribed in Section 4.4.…”
Section: Numerical Testsmentioning
confidence: 99%
“…We have implemented the first order (2.6) and second order (2.8) scheme for the approximation of the Boltzmann equation. Here, the Boltzmann collision operator is discretized by a deterministic method [22][23][24][25]27,52], which gives a spectrally accurate approximation. A classical second order finite volume scheme with slope limiters is applied for the transport operator as sdescribed in Section 4.4.…”
Section: Numerical Testsmentioning
confidence: 99%
“…In addition to the unpracticable computational cost of deterministic quadrature rules, the integration has to be handled carefully since it is at the basis of the macroscopic properties of the equation. Additional difficulties are represented by the stiffness induced by the presence of small scales, like the case of small mean free path [25] or the case of large velocities [22].…”
Section: Introductionmentioning
confidence: 99%
“…It has been recently shown to be convergent by F. Filbet and C. Mouhot in [22] for the elastic case and allows spectral accuracy [12]. It has then been derived for the granular gases operator (3.6) by F. Filbet, L. Pareschi and G. Toscani in [24].…”
Section: Discretization Of the Problemmentioning
confidence: 98%
“…Another approach consists in a direct resolution of the Boltzmann operator on a phase space grid. For instance, deterministic and highly accurate methods based on a spectral discretization of the collisional operator have been proposed by F. Filbet, G. Naldi, L. Pareschi, G. Toscani and G. Russo in [39,37,24] for the space-homogeneous setting. Although being of complexity O(N 2 ), they are spectrally accurate and then need very few points to be precise.…”
Section: Introductionmentioning
confidence: 99%