Transient heat transfer in a rarefied binary gas mixture confined between parallel plates due to a sudden small change of wall temperatures

Polikarpov, A.Ph. and Ho, Minh Tuan and Graur, I. (2016) Transient heat transfer in a rarefied binary gas mixture confined between parallel plates due to a sudden small change of wall temperatures. International Journal of Heat and Mass Transfer, 101. pp. 1292-1303. ISSN 0017-9310

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    Abstract

    Transient behavior of the heat transfer through binary gas mixture, confined between two infinite parallel plates, caused by the sudden change of the plates’ temperatures, is studied for two monoatomic gas mixtures: Ne–Ar and He–Ar. The walls’ temperature changes are considered small compared to the equilibrium temperature of the system, so the McCormack kinetic model is used for the numerical simulations. The time evolution of the main macroscopic parameter is investigated for various species concentrations and for different gas rarefactions ranging from near the free molecular to slip flow regime. It is found that the mixture heat flux takes several characteristic times, which is defined by the distance between the plates over the most probable molecular speed, to achieve its new equilibrium state. This time of the steady state flow establishment depends strongly on the gas rarefaction, mixture nature and composition.

    ORCID iDs

    Polikarpov, A.Ph., Ho, Minh Tuan ORCID logoORCID: https://orcid.org/0000-0002-9411-6447 and Graur, I.;
    • Item type:Article
      ID code:56881
      Dates:
      Date
      Event
      31 October 2016
      Published
      16 June 2016
      Published Online
      30 May 2016
      Accepted
      Keywords:rarefied gas, Boltzmann equation, binary mixture, transient heat transfer, wall temperature, Mechanical engineering and machinery, Physics, Mechanical Engineering, Fluid Flow and Transfer Processes, Condensed Matter Physics
      Subjects:Technology > Mechanical engineering and machinery
      Science > Physics
      Department:Faculty of Engineering > Mechanical and Aerospace Engineering
      Depositing user: Pure Administrator
      Date deposited:07 Jul 2016 15:48
      Last modified:30 Jul 2021 02:08
      Related URLs:
      URI:https://strathprints.strath.ac.uk/id/eprint/56881
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