INVESTIGATION OF PLASMA IN LAMINAR AND TURBULENT HYDROCARBON FLAMES,
Abstract
The ionization of hydrocarbon-air flames was studied under conditions of moving spherical flames in a closed vessel (bomb) by means of a one-electrode probe and an oscilloscope. The ion-generating reaction: CH + O to CH(+) + e(-) in hydrocarbon flames occurs due to transfer of OH radicals and O or H atoms in the reaction zone, followed by reaction H + O2 to OH + H. The part played by diffusion within the reaction zone obtains confirmation in measurements of ionization in turbulent flames, in the fact that velocity pulses are followed by pulses of ionization current, and also in that the maximum ionization current amplitudes in turbulent flames increase with the turbulence intensity, and are considerably higher than those for laminar flames in the same mixtures. Analysis of data on ionization in a detonation wave of hydrocarbon-oxygen flames results in two alternative concepts of the mechanism of ignition in a detonation wave. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1966
- Accession Number
- AD0644006
Entities
People
- A. S. Sokolik
- E. S. Semenov
Organizations
- National Air and Space Intelligence Center