A generalized Knudsen theory for gas transport with specular and diffuse reflections
JianHao Qian,
HengAn Wu,
FengChao Wang
Abstract:Gas permeation through nanopores is a long-standing research interest because of its importance in fundamental science and many technologies. The free molecular flow is conventionally described by Knudsen theory, under the diffuse reflection assumption. Recent experiments reported ballistic molecular transport of gases, which urges for the development of theoretical tools to address the predominant specular reflections on atomically smooth surfaces. Here we develop a generalized Knudsen theory, which is applic… Show more
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