Experimental Ablation Rates in a Turbulent Boundary Layer

[+] Author and Article Information
E. P. Bartlett

Aeronutronic, Division of Ford Motor Company, Newport Beach, Calif.

M. R. Denison

Fluid Dynamics and Propulsion, Aeronutronic, Division of Ford Motor Company, Newport Beach, Calif.

J. Heat Transfer 83(4), 457-464 (Nov 01, 1961) (8 pages) doi:10.1115/1.3683666 History: Received August 22, 1960


An exploratory experimental program on the ablation of graphite, a combustible sublimator, is reported which verifies an analysis of turbulent ablation rates previously developed. A blowdown system was employed using a mixture of oxygen and nitrogen as the working gas. The use of a high percentage of oxygen enabled the simulation of re-entry ablation conditions. Ablation rates were predicted within 30 per cent with no adjustment of empirical constants derived from incompressible turbulent skin-friction experiments. The predictions were consistently high. Temperature of the reacting surface, determined by means of a radiamatic pyrometer, was predicted within 10 per cent. The analysis can be applied to a wide variety of ablation materials including those which go through a liquid phase, provided proper account is taken of the chemistry, and provided the simplifying assumptions are valid.

Copyright © 1961 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In