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onlyou1221木蟲 (正式寫手)
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[求助]
顆粒擴(kuò)散系數(shù)
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Cunningham correction factor should not be included in a diffusion coefficient, since the statistics of the random walk process is not affected by the distance between the gas molecules relative to the size of the particle. However, this distance may affect the particle mobility in an external field. 但是很多文獻(xiàn)中給出的顆粒擴(kuò)散系數(shù)表達(dá)式中包含了Cunningham correction factor 。希望大牛們給些建議。 特別是這句話: since the statistics of the random walk process is not affected by the distance between the gas molecules relative to the size of the particle. However, this distance may affect the particle mobility in an external field. 這句話怎么理解?這句話與擴(kuò)散系數(shù)是否應(yīng)該包含Cunningham correction factor有關(guān)系嗎? |
木蟲 (正式寫手)
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