Deviation from the Knudsen law on quantum gases

Gas flow in micro/nano scale systems has been generally studied for the Maxwell gases. In the limits of very low temperature and very confined domains, the Maxwellian approximation can break down and the quantum character of the gases becomes important. In these cases, Knudsen law, which is one of t...

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Bibliographic Details
Main Author: Gulru, Babac
Format: Conference Proceeding
Language:English
Subjects:
APPROXIMATIONS
BOLTZMANN-VLASOV EQUATION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Domains
Gas flow
GASES
KNUDSEN FLOW
QUANTUM MECHANICS
Rarefied gases
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Summary:Gas flow in micro/nano scale systems has been generally studied for the Maxwell gases. In the limits of very low temperature and very confined domains, the Maxwellian approximation can break down and the quantum character of the gases becomes important. In these cases, Knudsen law, which is one of the important equations to analyze rarefied gas flows is invalid and should be reanalyzed for quantum gases. In this work, the availability of quantum gas conditions in the high Knudsen number cases is discussed and Knudsen law is analyzed for quantum gases.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4902657