Heat transfer ahead of flame spreading over a cured epoxy resin surface in an opposed flow
Abstract
The significance of the solid-phase heat conduction ahead of the flame, spreading horizontally, is investigated. The experimental method employed in this study permits the determination of the delay period of the flame skipping over an inert spacer which is flush with the sample surface and which is embedded in the epoxy sample normal to the flame propagation. An approximate solution of the one-dimensional solid-phase heat-transfer equation indicates that the delay period is directly proportional to the squared spacer thickness and inversely proportional to the thermal diffusivity of the spacer material. The experimental data obtained are in good agreement with the theoretical results. A mechanism of the flame skipping is proposed.
- Publication:
-
Flames, Lasers, and Reactive Systems
- Pub Date:
- 1983
- Bibcode:
- 1983flrs.rept..228K
- Keywords:
-
- Conductive Heat Transfer;
- Epoxy Resins;
- Flame Propagation;
- Plastic Propellants;
- Solid Propellant Combustion;
- Surface Reactions;
- Approximation;
- Curing;
- One Dimensional Flow;
- Solid Phases;
- Solid Propellant Ignition;
- Spacers;
- Fluid Mechanics and Heat Transfer