Abstract
A numerical analysis for investigating the surface absorption in radiant ignition of energetic solids is described. The analysis is based on the one-dimensional heat equation with in-depth, volumetric absorption. It was assumed that radiation absorption is a volumetric phenomenon in opaque solids. The results show that in many cases, in-depth absorption is significant and assuming surface absorption can cause ignition times to be severely underestimated. The analysis forms the basis of a nondimensional conduction/radiation parameter for radiant ignition of solids, that quantifies the importance of in-depth absorption compared to surface absorption.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 348-351 |
| Number of pages | 4 |
| Journal | Journal of thermophysics and heat transfer |
| Volume | 20 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2006 |
ASJC Scopus subject areas
- Condensed Matter Physics
- Aerospace Engineering
- Mechanical Engineering
- Fluid Flow and Transfer Processes
- Space and Planetary Science