Rarefied Flow Interfaces
This chapter describes the physics interfaces available to model the flow of rarefied gases. These physics interfaces are found under the Fluid Flow > Rarefied Flow branch ().
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The Transitional Flow Interface
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Theory for the Transitional Flow Interface
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The Free Molecular Flow Interface
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Theory for the Free Molecular Flow Interface
See The Single-Phase Flow, Laminar Flow Interface in the COMSOL Multiphysics Reference Manual for other Fluid Flow interface and feature node settings.