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Continuum model for Couette-Poiseuille flow in a drag molecular pump

Petr A. Skovorodko

physics.flu-dynarXiv:physics/0401020

Abstract

A continuum one-dimensional model of the plane Couette-Poiseuille flow is developed to describe the pressure distribution in a drag stage of molecular pump of either the Gaede or Holweck type. In spite of its simplicity and approximate nature the model provides a good qualitative representation of the drag pump operation in the whole range of the regimes from the continuum to free molecular ones.

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