An experimental and theoretical study of heat transfer in constant-volume and compression-expansion systems including the effects of flame propagation
Abstract
Heat transfer phenomena are studied. First an analysis of an observed reversal in the direction of the wall heat flux is presented. Then, an experimental study is reported in which simultaneous wall heat flux, pressure, and flame propagation data are obtained. In particular, the interaction of the flame propagation and wall heat transfer is discussed. An analytical solution for the reversal in direction of the wall heat flux during compression and expansion is derived. The results are in good agreement with experimental measurements. Temperature profiles were calculated. From these temperature profiles and the analytical solution of the wall heat flux, a physical explanation for the heat transfer reversal is determined. Simultaneous measurements of pressure, wall temperature, wall heat flux, and flame location and shape were obtained for combustion in constant volume, expansion, and compression-expansion systems.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- March 1982
- Bibcode:
- 1982PhDT........18W
- Keywords:
-
- Compression Loads;
- Expansion;
- Flame Propagation;
- Heat Flux;
- Heat Transfer;
- Internal Combustion Engines;
- Temperature Profiles;
- Finite Difference Theory;
- Pressure Measurement;
- Schlieren Photography;
- Wall Temperature;
- Fluid Mechanics and Heat Transfer