### Abstract

Language | English |
---|---|

Pages | 328-346 |

Number of pages | 18 |

Journal | Physica A: Statistical Mechanics and its Applications |

Volume | 358 |

Issue number | 2-4 |

DOIs | |

Publication status | Published - 15 Dec 2005 |

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### Keywords

- gas-wall interaction
- Boltzmann equation
- temperature jump
- slip velocity
- slip ﬂows

### Cite this

*Physica A: Statistical Mechanics and its Applications*,

*358*(2-4), 328-346. https://doi.org/10.1016/j.physa.2005.04.013

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*Physica A: Statistical Mechanics and its Applications*, vol. 358, no. 2-4, pp. 328-346. https://doi.org/10.1016/j.physa.2005.04.013

**Temperature jump and slip velocity calculations from an anisotropic scattering kernel.** / Dadzie, S. Kokou ; Méolens, J. Gilbert.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Temperature jump and slip velocity calculations from an anisotropic scattering kernel

AU - Dadzie, S. Kokou

AU - Méolens, J. Gilbert

PY - 2005/12/15

Y1 - 2005/12/15

N2 - This article deals with the problem of temperature jump and slip velocity at the wall in gas/surface interaction. A consistent modelling of an impermeable surface involving an anisotropic scattering kernel developed in previous works is used to establish boundary conditions in unstructured molecule gas ﬂows. Thus a temperature jump relation is derived in which the gas viscous effects at the wall and the mean velocity gradients appear. Likewise, a slip velocity relation is obtained in which both the slip coeffcient and the thermal creep coeffcient depend on the wall-to-gas temperature ratio. Moreover, both the temperature jump and the slip velocity relations involve not only one accommodation coeffcient as in usual expressions, but also the gas/surface information through the various (notably normal and tangential) accommodation coeffcients of the momentum components.

AB - This article deals with the problem of temperature jump and slip velocity at the wall in gas/surface interaction. A consistent modelling of an impermeable surface involving an anisotropic scattering kernel developed in previous works is used to establish boundary conditions in unstructured molecule gas ﬂows. Thus a temperature jump relation is derived in which the gas viscous effects at the wall and the mean velocity gradients appear. Likewise, a slip velocity relation is obtained in which both the slip coeffcient and the thermal creep coeffcient depend on the wall-to-gas temperature ratio. Moreover, both the temperature jump and the slip velocity relations involve not only one accommodation coeffcient as in usual expressions, but also the gas/surface information through the various (notably normal and tangential) accommodation coeffcients of the momentum components.

KW - gas-wall interaction

KW - Boltzmann equation

KW - temperature jump

KW - slip velocity

KW - slip ﬂows

U2 - 10.1016/j.physa.2005.04.013

DO - 10.1016/j.physa.2005.04.013

M3 - Article

VL - 358

SP - 328

EP - 346

JO - Physica A: Statistical Mechanics and its Applications

T2 - Physica A: Statistical Mechanics and its Applications

JF - Physica A: Statistical Mechanics and its Applications

SN - 0378-4371

IS - 2-4

ER -