Nosetip Design Analysis and Test Program (NDAT). Volume IV. Computer User's Manual for the Transient Melting Program (TRAMP).
Abstract
The transient melting program is a computer code formulated to predict the thermochemical response of silica-reinforced reentry vehicle nosetips. The ablation response of these materials is characterized by indepth depolymerization of the organic binder with the surface silica/char residue forming a chemically active melt layer. The melt layer supports the following two chemical reactions which serve to remove material via phase change: (1) silica vaporization, and (2) indepth carbon/silica reactions. In addition to accounting for these chemical processes, a transient explicit analysis of the melt-layer flow behavior controlled by the aerodynamic driving forces is given. The code accounts for nosetip contour change on the imposed aerothermal environment and constructs a two-dimensional temperature-density field from a series of one-dimensional indepth heat conduction solutions. Basic formulations used in the program are described. Operating instructions are given, and sample output data are displayed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 15, 1970
- Accession Number
- AD0886932
Entities
People
- L. W. Gallagher
- R. E. Maurer
- W. D. Coleman
Organizations
- Lockheed Martin Missiles and Space