Cycle-Resolved Measurements of Flame Kernel Growth and Motion Correlated with Combustion Duration Sandia National Laboratories

Format:

Conference/Event

Author/Creator:

Witze, Peter O., author.

Conference Name:

International Congress & Exposition (1990-02-26 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1990

Summary:

AbstractA recently developed spark plug equipped with fiber-optic flame-arrival detectors has been used to measure the motion and rate of growth of the early flame kernel. The cylinder pressure and gas velocity in the spark gap were measured simultaneously with the flame kernel measurements, permitting the data to be analyzed on a cycle-by-cycle basis to identify cause-and-effect correlations between the measured parameters.The data were obtained in a homogeneous-charge research engine that could be modified to produce three very different flow fields: (1) high swirl with high turbulence intensity, (2) tumble vortex with moderate turbulence intensity, and (3) negligible bulk motion with low turbulence intensity. The results presented show a moderate correlation between the combustion duration and the rate of growth of the flame kernel, but virtually no correlation with either the magnitude or direction of movement of the flame kernel away from the spark gap

Notes:

Vendor supplied data

Publisher Number:

900023

Access Restriction:

Restricted for use by site license