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

[img]
Preview
 Text (Polikarpov-etal-IJHT-2016-transient-heat-transfer-in-a-rarefied-binary-gas-mixture)
Polikarpov_etal_IJHT_2016_transient_heat_transfer_in_a_rarefied_binary_gas_mixture.pdf
Accepted Author Manuscript
License: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 logo
Download (757kB)| Preview

    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.

    Author(s):Polikarpov, A.Ph., Ho, Minh Tuan ORCID logoORCID: https://orcid.org/0000-0002-9411-6447 and Graur, I.
    Item type:Article
    ID code:56881
    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:08 Jan 2020 23:31
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/56881
    Export data:
    CORE (COnnecting REpositories)