Deviation from the Knudsen Law on Quantum Gases

Babac G.

29th International Symposium on Rarefi ed Gas Dynamics (RGD), Xian, China, 13 - 18 July 2014, vol.1628, pp.667-673 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1628
  • Doi Number: 10.1063/1.4902657
  • City: Xian
  • Country: China
  • Page Numbers: pp.667-673
  • Istanbul Technical University Affiliated: No

Abstract

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.