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vanishes and a fully developed steady state channel flow shows infinite flux. On the other hand, the particles stop interacting for large
Knudsen numbers. Because of the constant acceleration due to the external force, the steady state again will show infinite flux.
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has been observed in experiments of channel flow with varying channel width or equivalently different pressures. If the normalized
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based on the channel width a distinct minimum is observed around
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53:{\displaystyle Kn=0.8}
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