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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.44 [2006] >
IJPAP Vol.44(10) [October 2006] >
| Title: | Evaluation of thermal conductivity of ablative material |
| Authors: | Sundaresan, N K
Ambirajan, A
Ramasamy, A
Gupta, P P
Bhandari, D R |
| Keywords: | Thermal conductivity
Ablative material
Re-entry spacecraft |
| Issue Date: | Oct-2006 |
| Publisher: | CSIR |
| IPC Code: | G01N25/18 |
| Abstract: | Ablatives are very often used in the Thermal
Protection System of re-entry spacecraft. Their thermal conductivity will play
an important role in determining the temperatures of components and payloads
during the on-orbit and re-entry phases on the mission. A series of calorimetric
tests were conducted on these materials to ascertain their thermal
conductivity. A description of the experiments and the results of analyses of
the experimental temperature data from the ablatives are presented in this
paper. Three-dimensional mathematical model of the experiment was developed and
analysed. The thermal conductivity of two ablative samples is determined by
manually minimising the root sum of squares error (RSSE) between experimental
and numerical data. The results obtained using this technique are compared with
the results of a one-dimensional analysis. |
| Page(s): | 719-723 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.44(10) [October 2006]
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