*
This program performs a one-dimensional numerical analysis of the transient
thermal response of multi-layer insulative systems. The analysis can
determine the temperature distribution through a system consisting of from
one to four layers, one of which can be an air gap. Concentrated heat sinks
at any interface can be included. The computer program based on the
analysis will determine the thickness of a specified layer that will
satisfy a temperature limit criterion at any point in the insulative
system. The program will also automatically calculate the thickness at
several points on a system and determine the total system mass. This
program was developed as a tool for designing thermal protection systems for
high speed aerospace vehicles but could be adapted to many areas of
industry involved in thermal insulation systems.*

*
In this package, the equations describing the transient thermal response
of a system are developed. The governing differential equation for each
layer and boundary condition are put in finite-difference form using a
Taylor's series expansion. These equations yield an essentially
tridiagonal matrix of unknown temperatures. A procedure based on Gauss'
elimination method is used to solve the matrix.
(NASA Langley Research Center)*

This program was released by NASA through COSMIC as LAR-12057. The italicized text above is from the official NASA release.

- There are no references for this program.
- Download therm1d.zip, containing the original source code and a conversion to modern Fortran.