Combustion, Explosion and Shock Waves

, Volume 3, Issue 2, pp 155–158 | Cite as

Experimental determination of the rate of graphite ablation under nonisothermal conditions

  • A. I. Leont'ev
  • E. P. Volchkov
  • E. G. Zaulichnyi
  • E. I. Sinaiko
Article
  • 41 Downloads

Summary

  1. 1.

    The experiments show that in the range of variation of the enthalpy factor from 6.5 to 9.3 and Reynolds number from 104 to · 106 there is satisfactory agreement between experiment and the limit formula

    $$\left( {\frac{{St_h }}{{St_0 }}} \right)_{\operatorname{Re} _h^{**} } = \Psi _1 = \left( {\frac{2}{{\sqrt {\psi _1 + 1} }}} \right)^2 ,$$

    where

    $$St_0 = \frac{{0.0128}}{{Re_h^{**0.25} \Pr ^{0.75} }}$$

    and

    $$Re_h^{**} = \frac{{\rho \upsilon w_0 \delta _h^{**} }}{{\mu _W }}.$$
     
  2. 2.

    The basic mechanism of graphite ablation in the temperature region in question is chemical erosion, whose intensity depends on the “oxidation potential” b1 of the main stream.

     

Keywords

Oxidation Graphite Enthalpy Dynamical System Reynolds Number 

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Copyright information

© The Faraday Press, Inc. 1969

Authors and Affiliations

  • A. I. Leont'ev
  • E. P. Volchkov
  • E. G. Zaulichnyi
  • E. I. Sinaiko

There are no affiliations available

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