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Experimental study of the dynamics of a spherical flame
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Oppenheim, A. K. Kamel, M. M. Varvatsoulis, C. |
| Copyright Year | 1973 |
| Description | Preliminary results of an experimental study conducted to investigate the dynamic behavior of flames in explosive gases are presented. The medium was an equimolar acetylene-oxygen mixture maintained initially at a pressure of 110 torr. and room temperature in an experimental vessel 9 cm in internal diameter. Ignition was performed by means of a neodymium laser beam focused on a 0.3 mm diameter steel wire. Experimental observations were performed by the use of a stroboscopic laser-schlieren system yielding a set of photographic records of wave phenomena at a frequency of 200,000 per second. The records reveal the existence of a number of shocks which by a thorough analysis of the blast wave generated by the ignition process, are shown to be due entirely to the flame generated flow field. The capability of a flame to form blast waves in an expanding spherical geometry is thus established, providing an experimental demonstration of the significance the dynamic effects of combustion can achieve. |
| File Size | 2080469 |
| Page Count | 15 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19730024092 |
| Archival Resource Key | ark:/13960/t59d1q82q |
| Language | English |
| Publisher Date | 1973-01-01 |
| Access Restriction | Open |
| Subject Keyword | Thermodynamics And Combustion Photographic Recording Shock Waves Oxygen Detonation Flow Characteristics Frame Photography Gas Explosions Flame Propagation High Speed Cameras Acetylene Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
