Rewrite the given abstract

    Rewrite the given abstract
    I will pay 10$ to rewrite the given abstract. Very short abstract its (273 words).

    if the scholar doesnt understant the topic and need extra information I will also provide.

    I hope the scholar finish the paper in 8 hr but if the scholar need more time give extra time.

    File #1
    Abstract: The Bychkov model of extremely fast flame acceleration in obstructed
    pipes [Combust. Flame 157 (2010) 2012] employs a number of simplifying
    assumptions, including those of slip and adiabatic surfaces of the obstacles and of
    the pipe wall. In the present work, the influence of various mechanistic surface
    conditions on the flame dynamics in a cylindrical pipe of radius R, involving an
    array of parallel, tightly-spaced obstacles of length aR, is scrutinized by means of
    the computational simulations of the fully-compressible axisymmetric
    hydrodynamic and combustion equations with an Arrhenius chemistry.
    Specifically, nonslip and slip surfaces are compared for the blockage ratio, a and
    the spacing between the obstacles, ?z, in the ranges 1/3 = a = 2/3 and 0.25 = ?z/R
    = 2.0, respectively. It is shown that the impact of surface friction on flame
    acceleration is minor, only 1.3~3.5%, being positive in a pipe with ?z/R = 0.5 and
    negative for ?z/R = 0.25. We have also demonstrated a minor effect of the
    isothermal surfaces as compared to the adiabatic ones [Phys. Fluids 28 (2016)
    093602]. With the fact that the real boundary conditions are neither slip nor
    nonslip; neither adiabatic nor isothermal, but in between these categories, the
    present work thereby justifies the Bychkov model and makes its wider applicable
    to the practical reality. While this result can be anticipated and explained by the
    fact that the flame dynamics is mainly driven by its spreading in the unobstructed
    portion of an obstructed pipe (i.e. far from the wall), the situation is, however,
    qualitatively different from that in the unobstructed pipes, where the mechanistic
    and thermal wall conditions modify the flame dynamics conceptually.
    Keywords: computational simulations, obstructed pipes; wall friction; boundary
    condition.

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