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

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

2004-01-07

arxiv.org/abs/physics/0401020v1

Physics

Fluid Dynamics

2 pages, 1 figure; presented as abstract #151 at 23rd International Symposium on Rarefied Gas Dynamics, Whistler, BC, Canada,

Scientific paper

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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