Leading-Edge Velocities and Lifted Methane Jet Flame Stability

Figure 7

(a) and (b) Streamlines passing through the left (a) and right (b) flame edges of case 4. (c) Velocity variation at the left flame edge of case 4. The points’ velocities in the polygon are 0.85 m/s, 2.06 m/s, 1.77 m/s, 0.39 m/s, 0.69  m/s, and 1.15 m/s (ordered by left to right, top down). (d) Velocity variation at the right flame edge of case 4. The points’ velocities in the polygon are 0.93 m/s, 0.66 m/s, 0.46 m/s, 0.42 m/s, and 0.45 m/s (ordered by left to right, top down). The velocities of points 7-d1 and 7-d2 are 1.8 m/s and 1.57 m/s, respectively.