Configuration | Eccentricity of the Swirling Air flow e = s/R | Comments |
No Electrodes | 0 | Velocity profiles are almost perfectly axisymmetric. Center of swirling airflow coincides with the centerline of flame tube. |
Two electrodes (Normal Configuration) | 0.184 | Large departure from axisymmetry Center of swirling airflow shifted by 0.31" from the centerline of the flame tube. |
Four Electrodes | 0.065 | Reduces flow distortion by a factor of 2 when compared to the two electrode case. Center of swirling airflow shifted by 0.11" from the centerline of the flame tube |