Accession Number:

ADA051699

Title:

Analytic Solutions for Carbon Sublimation in Atmospheres of Elemental Carbon, Hydrogen, Nitrogen, and Oxygen.

Descriptive Note:

Final rept. 1 Aug-30 Sep 77,

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF VEHICLE ENGINEERING DIV

Personal Author(s):

Report Date:

1977-12-01

Pagination or Media Count:

54.0

Abstract:

Analytic solutions have been obtained for the equilibrium sublimation of a carbon surface in atmospheres whose elemental composition consists of carbon, hydrogen, oxygen, nitrogen, and an inert element. The solutions are expressed in simple algebraic expressions for the surface mass transfer parameter B prime and are computationally trivial, requiring only the evaluation of a quadratic equation. The analytic expressions are essentially exact and include an arbitrary number of carbon sublimation species and all the dominant gas phase reactions, while ignoring only those species which exist in trace amounts. The solutions are in excellent agreement with exact results from the ACE chemistry code.

Subject Categories:

  • Physical Chemistry
  • Ceramics, Refractories and Glass
  • Theoretical Mathematics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE