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Accommodation Two‐Moment Boundary Conditions in Problems of Thermal and Isothermal Slip

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Journal of Engineering Physics and Thermophysics Aims and scope

Abstract

A new model of boundary conditions which generalizes the known Cercignani boundary condition is suggested. In this model, both the coefficient of accommodation of the tangential pulse of molecules and the coefficient of accommodation of the next moment of the distribution function are taken into account. The model is capable of approximating the mirror‐diffuse boundary condition for the problems of slip with an accuracy of 1% and allows for the possibility of accommodation of different moments occurring differently on the surface. This possibility is absent in both the mirror‐diffuse boundary condition and the Cercignani condition.

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Authors and Affiliations

  1. Moscow Pedagogical Institute, Russia

    A. V. Latyshev & A. A. Yushkanov

Authors
  1. A. V. Latyshev
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  2. A. A. Yushkanov
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Latyshev, A.V., Yushkanov, A.A. Accommodation Two‐Moment Boundary Conditions in Problems of Thermal and Isothermal Slip. Journal of Engineering Physics and Thermophysics 74, 623–631 (2001). https://doi.org/10.1023/A:1016700109441

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  • DOI: https://doi.org/10.1023/A:1016700109441

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