Cycle-resolved Flame Structure Analysis of Turbulent Premixed Engine Flames

G. F. W. Ziegler; P. Meinhardt; R. Herweg; R. Maly

1990-05-01

Cycle-resolved Flame Structure Analysis of Turbulent Premixed Engine Flames 905001

The structure of turbulent flames was examined in a square-piston engine. Submicron-sized smoke particles were added to the homogeneous propane/air mixture. The Mie-scattering of these particles allowed to visualize two-dimensional flame contours. A copper vapour laser generated pulsed laser sheets at a frequency up to 12 kHz.

The flame contours were evaluated with digital image processing methods: fractal analysis, complex Fourier transform procedure and statistical flame contour analysis. The following flame parameters have been deduced applying these methods: Fourier factor, combustion zone thickness, mean radius of curvature, fractal dimension, wrinkling factor, flame-let crossing frequency, integral length scale and flame front thickness.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Digital $35.00 Print $35.00

Preview Document

We also recommend:

Standards

SAE Mobilus®

Publications

News

Events

Professional Development

A World in Motion (PreK-12)

Participate with SAE

SAE Membership

Donate

Cycle-resolved Flame Structure Analysis of Turbulent Premixed Engine Flames 905001

SAE MOBILUS