Regimes of Rarefied Gas Flows

Part of the Fluid Mechanics and Its Applications book series (FMIA, volume 83)


Consider the steady-state flow of an infinite stream of a rarefied gas over a body having a characteristic dimension, R, in the absence of external forces. In this case, the Boltzmann equation may be expressed in the form:
$$ v \cdot \frac{{\partial f}} {{\partial \tilde r}} = \iiint {\left( {f'f'_1 - ff_1 } \right)}gbdbd\varepsilon dv_1 . $$


Boltzmann Equation Knudsen Number Accommodation Coefficient Knudsen Layer Tangential Momentum Accommodation Coefficient 
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