This paper is a theoretical modeling study of the nonlinear transport of momentum and energy in a hypersonic rarefied flow past a sharp leading-edge flat plate at zero angle of attack. A characteristic parameter V r x is introduced to describe the non-Newtonian shear and non-Fourier heat transfer features in the near-continuum flow regime via approximate analyses on the corresponding terms from the Burnett equation. Modified formulas based on V r x are proposed to quantitatively predict the skin friction and heat flux along the plate, and the Reynolds analogy is proved to still be valid in the near-continuum flow regime. The physical meaning of V r x and the flow mechanism are discussed. The direct simulation Monte Carlo method is also employed to validate the analytical results and to show the existence of a general analogy between the skin friction and heat flux in the whole flow regime from the continuum through the transition to the free molecular flow limit.


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    Title :

    Nonlinear Shear and Heat Transfer in Hypersonic Rarefied Flows Past Flat Plates


    Contributors:

    Published in:

    AIAA Journal ; 53 , 2 ; 413-419


    Publication date :

    2014-07-15


    Size :

    7 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English