Last Updated:2025/12/03

When the Knudsen number exceeds about 0.1, gas flow through the aperture transitions into a rarefied regime where molecular collisions with the walls dominate.

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When the Knudsen number exceeds about 0.1, gas flow through the aperture transitions into a rarefied regime where molecular collisions with the walls dominate.

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平均自由行程と開口径の比が約0.1を超えると、開口を通る気体の流れは壁との分子衝突が支配する希薄流動領域へと移行します。

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